Home / 42,129.96-63,201.40-15,836.52

Finding the Fourth Proportional to 42,129.96, 63,201.40 and 15,836.52

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Solution

The fourth proportional to 42,129.96, 63,201.40 and 15,836.52 is: 23,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,129.96 : 63,201.40 = 15,836.52 : x
  2. Step 2: Convert to fraction form
    42,129.96/63,201.40 = 15,836.52/x
  3. Step 3: Cross multiply
    42,129.96x = 63,201.40 × 15,836.52
  4. Step 4: Simplify right side
    42,129.96x = 1,000,890,235.13
  5. Step 5: Solve for x
    x = 1,000,890,235.13/42,129.96
  6. Step 6: Final answer
    x = 23,757.21

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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.