Home / 25,731.48-38,572.56-8,189.88

Finding the Fourth Proportional to 25,731.48, 38,572.56 and 8,189.88

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Solution

The fourth proportional to 25,731.48, 38,572.56 and 8,189.88 is: 12,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.48 : 38,572.56 = 8,189.88 : x
  2. Step 2: Convert to fraction form
    25,731.48/38,572.56 = 8,189.88/x
  3. Step 3: Cross multiply
    25,731.48x = 38,572.56 × 8,189.88
  4. Step 4: Simplify right side
    25,731.48x = 315,904,637.69
  5. Step 5: Solve for x
    x = 315,904,637.69/25,731.48
  6. Step 6: Final answer
    x = 12,276.97

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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.