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Finding the Fourth Proportional to 16,685.60, 25,034.80 and 16,423.20

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Solution

The fourth proportional to 16,685.60, 25,034.80 and 16,423.20 is: 24,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,685.60 : 25,034.80 = 16,423.20 : x
  2. Step 2: Convert to fraction form
    16,685.60/25,034.80 = 16,423.20/x
  3. Step 3: Cross multiply
    16,685.60x = 25,034.80 × 16,423.20
  4. Step 4: Simplify right side
    16,685.60x = 411,151,527.36
  5. Step 5: Solve for x
    x = 411,151,527.36/16,685.60
  6. Step 6: Final answer
    x = 24,641.10

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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.