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Finding the Fourth Proportional to 20,333.40, 30,456.90 and 16,877.40

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Solution

The fourth proportional to 20,333.40, 30,456.90 and 16,877.40 is: 25,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.40 : 30,456.90 = 16,877.40 : x
  2. Step 2: Convert to fraction form
    20,333.40/30,456.90 = 16,877.40/x
  3. Step 3: Cross multiply
    20,333.40x = 30,456.90 × 16,877.40
  4. Step 4: Simplify right side
    20,333.40x = 514,033,284.06
  5. Step 5: Solve for x
    x = 514,033,284.06/20,333.40
  6. Step 6: Final answer
    x = 25,280.24

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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.