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Finding the Fourth Proportional to 17,254.20, 25,881.30 and 15,115.80

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Solution

The fourth proportional to 17,254.20, 25,881.30 and 15,115.80 is: 22,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,254.20 : 25,881.30 = 15,115.80 : x
  2. Step 2: Convert to fraction form
    17,254.20/25,881.30 = 15,115.80/x
  3. Step 3: Cross multiply
    17,254.20x = 25,881.30 × 15,115.80
  4. Step 4: Simplify right side
    17,254.20x = 391,216,554.54
  5. Step 5: Solve for x
    x = 391,216,554.54/17,254.20
  6. Step 6: Final answer
    x = 22,673.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.