Home / 15,716-21,627

Finding the Third Proportional to 15,716 and 21,627

Calculator

Solution

The third proportional to 15,716 and 21,627 is: 29,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,716 : 21,627 = 21,627 : x
  2. Step 2: Convert to fraction form
    15,716/21,627 = 21,627/x
  3. Step 3: Cross multiply
    15,716x = 21,627 × 21,627
  4. Step 4: Simplify right side
    15,716x = 467,727,129
  5. Step 5: Solve for x
    x = 467,727,129/15,716
  6. Step 6: Final answer
    x = 29,761.21

Related Problems

Find third proportional to 7,858 and 10,813.50
Half scale
Find third proportional to 31,432 and 43,254
Double scale
Find third proportional to 15,718 and 21,630
Similar ratio
Find third proportional to 23,574 and 32,440.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.