What is x when 21 divided by x equals 19?

In other words, what would the divisor be if the dividend were 21 and the quotient 19?

To find the answer, just divide the dividend by the quotient: 21 ÷ 19 = 1.1052631578947

To prove this, let's compute 21 divided by 1.1052631578947: 21 1.1052631578947 = 19

How does it work?

Asking what the value of x could be when 21 divided by x gives a result of 19, is equivalent to solving the following equation:

21 x = 19

  1. Multiply both sides by x: 21 x x = 19 x
  2. 21 x x is equivalent to x x × 21 , which simplifies to 1 × 21 (or just 21 ).
  3. Thus, the equation becomes: 21 = 19 x
  4. To find x, divide both sides by 19: 21 19 = 19 x 19
  5. Which gives, after simplification: 1.1052631578947 = x (or x = 1.1052631578947 )

So, if the dividend is 21 and the quotient is 19, the divisor is 1.1052631578947.