Home / 42,229.86-63,279.12-15,920.26

Finding the Fourth Proportional to 42,229.86, 63,279.12 and 15,920.26

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Solution

The fourth proportional to 42,229.86, 63,279.12 and 15,920.26 is: 23,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,229.86 : 63,279.12 = 15,920.26 : x
  2. Step 2: Convert to fraction form
    42,229.86/63,279.12 = 15,920.26/x
  3. Step 3: Cross multiply
    42,229.86x = 63,279.12 × 15,920.26
  4. Step 4: Simplify right side
    42,229.86x = 1,007,420,042.97
  5. Step 5: Solve for x
    x = 1,007,420,042.97/42,229.86
  6. Step 6: Final answer
    x = 23,855.63

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1.5x scale

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.