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Finding the Fourth Proportional to 27,199.76, 40,799.61 and 8,481.29

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Solution

The fourth proportional to 27,199.76, 40,799.61 and 8,481.29 is: 12,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,199.76 : 40,799.61 = 8,481.29 : x
  2. Step 2: Convert to fraction form
    27,199.76/40,799.61 = 8,481.29/x
  3. Step 3: Cross multiply
    27,199.76x = 40,799.61 × 8,481.29
  4. Step 4: Simplify right side
    27,199.76x = 346,033,120.30
  5. Step 5: Solve for x
    x = 346,033,120.30/27,199.76
  6. Step 6: Final answer
    x = 12,721.92

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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.