Home / 42,132.48-63,189-15,839.88

Finding the Fourth Proportional to 42,132.48, 63,189 and 15,839.88

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Solution

The fourth proportional to 42,132.48, 63,189 and 15,839.88 is: 23,756.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,132.48 : 63,189 = 15,839.88 : x
  2. Step 2: Convert to fraction form
    42,132.48/63,189 = 15,839.88/x
  3. Step 3: Cross multiply
    42,132.48x = 63,189 × 15,839.88
  4. Step 4: Simplify right side
    42,132.48x = 1,000,906,177.32
  5. Step 5: Solve for x
    x = 1,000,906,177.32/42,132.48
  6. Step 6: Final answer
    x = 23,756.17

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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.