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Finding the Fourth Proportional to 16,000.20, 23,979.90 and 8,980.20

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Solution

The fourth proportional to 16,000.20, 23,979.90 and 8,980.20 is: 13,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,000.20 : 23,979.90 = 8,980.20 : x
  2. Step 2: Convert to fraction form
    16,000.20/23,979.90 = 8,980.20/x
  3. Step 3: Cross multiply
    16,000.20x = 23,979.90 × 8,980.20
  4. Step 4: Simplify right side
    16,000.20x = 215,344,297.98
  5. Step 5: Solve for x
    x = 215,344,297.98/16,000.20
  6. Step 6: Final answer
    x = 13,458.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.