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Finding the Fourth Proportional to 16,992.60, 25,481.70 and 8,230.20

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Solution

The fourth proportional to 16,992.60, 25,481.70 and 8,230.20 is: 12,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.60 : 25,481.70 = 8,230.20 : x
  2. Step 2: Convert to fraction form
    16,992.60/25,481.70 = 8,230.20/x
  3. Step 3: Cross multiply
    16,992.60x = 25,481.70 × 8,230.20
  4. Step 4: Simplify right side
    16,992.60x = 209,719,487.34
  5. Step 5: Solve for x
    x = 209,719,487.34/16,992.60
  6. Step 6: Final answer
    x = 12,341.81

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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.