Home / 15,892-21,812

Finding the Third Proportional to 15,892 and 21,812

Calculator

Solution

The third proportional to 15,892 and 21,812 is: 29,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,892 : 21,812 = 21,812 : x
  2. Step 2: Convert to fraction form
    15,892/21,812 = 21,812/x
  3. Step 3: Cross multiply
    15,892x = 21,812 × 21,812
  4. Step 4: Simplify right side
    15,892x = 475,763,344
  5. Step 5: Solve for x
    x = 475,763,344/15,892
  6. Step 6: Final answer
    x = 29,937.29

Related Problems

Find third proportional to 7,946 and 10,906
Half scale
Find third proportional to 31,784 and 43,624
Double scale
Find third proportional to 15,894 and 21,815
Similar ratio
Find third proportional to 23,838 and 32,718
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.