Home / 25,884.55-38,788.25-13,387.88

Finding the Fourth Proportional to 25,884.55, 38,788.25 and 13,387.88

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Solution

The fourth proportional to 25,884.55, 38,788.25 and 13,387.88 is: 20,061.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,884.55 : 38,788.25 = 13,387.88 : x
  2. Step 2: Convert to fraction form
    25,884.55/38,788.25 = 13,387.88/x
  3. Step 3: Cross multiply
    25,884.55x = 38,788.25 × 13,387.88
  4. Step 4: Simplify right side
    25,884.55x = 519,292,436.41
  5. Step 5: Solve for x
    x = 519,292,436.41/25,884.55
  6. Step 6: Final answer
    x = 20,061.87

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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.