Home / 42,259.97-63,422.10-15,631.16

Finding the Fourth Proportional to 42,259.97, 63,422.10 and 15,631.16

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Solution

The fourth proportional to 42,259.97, 63,422.10 and 15,631.16 is: 23,458.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,259.97 : 63,422.10 = 15,631.16 : x
  2. Step 2: Convert to fraction form
    42,259.97/63,422.10 = 15,631.16/x
  3. Step 3: Cross multiply
    42,259.97x = 63,422.10 × 15,631.16
  4. Step 4: Simplify right side
    42,259.97x = 991,360,675.53
  5. Step 5: Solve for x
    x = 991,360,675.53/42,259.97
  6. Step 6: Final answer
    x = 23,458.62

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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.