Home / 42,385.12-63,609.44-15,755.68

Finding the Fourth Proportional to 42,385.12, 63,609.44 and 15,755.68

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Solution

The fourth proportional to 42,385.12, 63,609.44 and 15,755.68 is: 23,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,385.12 : 63,609.44 = 15,755.68 : x
  2. Step 2: Convert to fraction form
    42,385.12/63,609.44 = 15,755.68/x
  3. Step 3: Cross multiply
    42,385.12x = 63,609.44 × 15,755.68
  4. Step 4: Simplify right side
    42,385.12x = 1,002,209,981.62
  5. Step 5: Solve for x
    x = 1,002,209,981.62/42,385.12
  6. Step 6: Final answer
    x = 23,645.33

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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.