Home / 42,159.31-63,188.20-15,483.85

Finding the Fourth Proportional to 42,159.31, 63,188.20 and 15,483.85

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Solution

The fourth proportional to 42,159.31, 63,188.20 and 15,483.85 is: 23,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,159.31 : 63,188.20 = 15,483.85 : x
  2. Step 2: Convert to fraction form
    42,159.31/63,188.20 = 15,483.85/x
  3. Step 3: Cross multiply
    42,159.31x = 63,188.20 × 15,483.85
  4. Step 4: Simplify right side
    42,159.31x = 978,396,610.57
  5. Step 5: Solve for x
    x = 978,396,610.57/42,159.31
  6. Step 6: Final answer
    x = 23,207.13

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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.