Question

If the same number added to the numbers 5, 11, 15, 31,and the resulting numbers are in proportion, find the number.​

Answer 1

Answer:

the number is"1"..........

Answer 2

Answer:

The answer is 1

Step-by-step explanation:

Let the same number to be added be x

ATP,

x+5/x+11 = x+15/x+31

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

x^2+36x+155 = x^2+26x+165

36x-26x = 165-155                                [$Both x^2 got cancelled$]

10x = 10

x = 1