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Finding the Fourth Proportional to 16,138.20, 24,207.30 and 14,129.40

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Solution

The fourth proportional to 16,138.20, 24,207.30 and 14,129.40 is: 21,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,138.20 : 24,207.30 = 14,129.40 : x
  2. Step 2: Convert to fraction form
    16,138.20/24,207.30 = 14,129.40/x
  3. Step 3: Cross multiply
    16,138.20x = 24,207.30 × 14,129.40
  4. Step 4: Simplify right side
    16,138.20x = 342,034,624.62
  5. Step 5: Solve for x
    x = 342,034,624.62/16,138.20
  6. Step 6: Final answer
    x = 21,194.10

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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.