Question

If the same number is added to the numbers 5, 11, 15, and 31 the resulting numbers are in proportion a/b = c/d. Find the numbers

Answer 1

Step-by-step explanation:

let number be x

so (5+x)/(11+x)=(15+x)/(31+x)

by cross multiplcation

5+x × 31+x =11+x × 15+x

soving this we will get the value of x