Question

12:x::48:40 find the value of x

Answer 1

12 : x : : 48 : 40


$\frac{12}{x} = \frac{48}{40}$


$\bold{Multiply \: \: on \: \:numerator \: \: and \: \: denominator \: \: by \: \: 4} \\ \\ \\ = > \frac{12 \times 4}{x \times 4} = \frac{48}{40}$


Comparing values, we get

4x = 40


x = 40 / 4

x = 10