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Finding the Fourth Proportional to 16,909.92, 23,330.40 and 10,197.60

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Solution

The fourth proportional to 16,909.92, 23,330.40 and 10,197.60 is: 14,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,909.92 : 23,330.40 = 10,197.60 : x
  2. Step 2: Convert to fraction form
    16,909.92/23,330.40 = 10,197.60/x
  3. Step 3: Cross multiply
    16,909.92x = 23,330.40 × 10,197.60
  4. Step 4: Simplify right side
    16,909.92x = 237,914,087.04
  5. Step 5: Solve for x
    x = 237,914,087.04/16,909.92
  6. Step 6: Final answer
    x = 14,069.50

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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.