What is x when 19 divided by x equals 43?

To find the answer, just divide the dividend by the quotient: 19 ÷ 43 = 0.44186046511628

To prove this, let's compute 19 divided by 0.44186046511628: $\frac{19}{0.44186046511628} = 43$

How does it work?

Asking what the value of x could be when 19 divided by x gives a result of 43, is equivalent to solving the following equation:

$\frac{19}{x} = 43$

Multiply both sides by x: $\frac{19 x}{x} = 43 x$
$\frac{19 x}{x}$ is equivalent to $\frac{x}{x} \times 19$ , which simplifies to $1 \times 19$ (or just $19$ ).
Thus, the equation becomes: $19 = 43 x$
To find x, divide both sides by 43: $\frac{19}{43} = \frac{43 x}{43}$
Which gives, after simplification: $0.44186046511628 = x$ (or $x = 0.44186046511628$ )

So, if the dividend is 19 and the quotient is 43, the divisor is 0.44186046511628.