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Finding the Fourth Proportional to 27,390.87, 37,799.42 and 14,815.62

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Solution

The fourth proportional to 27,390.87, 37,799.42 and 14,815.62 is: 20,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,390.87 : 37,799.42 = 14,815.62 : x
  2. Step 2: Convert to fraction form
    27,390.87/37,799.42 = 14,815.62/x
  3. Step 3: Cross multiply
    27,390.87x = 37,799.42 × 14,815.62
  4. Step 4: Simplify right side
    27,390.87x = 560,021,768.86
  5. Step 5: Solve for x
    x = 560,021,768.86/27,390.87
  6. Step 6: Final answer
    x = 20,445.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.