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Finding the Fourth Proportional to 25,370.34, 38,013.95 and 13,511.52

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Solution

The fourth proportional to 25,370.34, 38,013.95 and 13,511.52 is: 20,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,370.34 : 38,013.95 = 13,511.52 : x
  2. Step 2: Convert to fraction form
    25,370.34/38,013.95 = 13,511.52/x
  3. Step 3: Cross multiply
    25,370.34x = 38,013.95 × 13,511.52
  4. Step 4: Simplify right side
    25,370.34x = 513,626,279.48
  5. Step 5: Solve for x
    x = 513,626,279.48/25,370.34
  6. Step 6: Final answer
    x = 20,245.15

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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.