Home / 39,876.40-59,760.60-25,793.20

Finding the Fourth Proportional to 39,876.40, 59,760.60 and 25,793.20

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Solution

The fourth proportional to 39,876.40, 59,760.60 and 25,793.20 is: 38,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,876.40 : 59,760.60 = 25,793.20 : x
  2. Step 2: Convert to fraction form
    39,876.40/59,760.60 = 25,793.20/x
  3. Step 3: Cross multiply
    39,876.40x = 59,760.60 × 25,793.20
  4. Step 4: Simplify right side
    39,876.40x = 1,541,417,107.92
  5. Step 5: Solve for x
    x = 1,541,417,107.92/39,876.40
  6. Step 6: Final answer
    x = 38,654.87

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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.