Home / 20,755.77-31,104.49-15,565.29

Finding the Fourth Proportional to 20,755.77, 31,104.49 and 15,565.29

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Solution

The fourth proportional to 20,755.77, 31,104.49 and 15,565.29 is: 23,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.77 : 31,104.49 = 15,565.29 : x
  2. Step 2: Convert to fraction form
    20,755.77/31,104.49 = 15,565.29/x
  3. Step 3: Cross multiply
    20,755.77x = 31,104.49 × 15,565.29
  4. Step 4: Simplify right side
    20,755.77x = 484,150,407.15
  5. Step 5: Solve for x
    x = 484,150,407.15/20,755.77
  6. Step 6: Final answer
    x = 23,326.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.