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Finding the Fourth Proportional to 18,092.20, 27,138.30 and 16,479.40

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Solution

The fourth proportional to 18,092.20, 27,138.30 and 16,479.40 is: 24,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.20 : 27,138.30 = 16,479.40 : x
  2. Step 2: Convert to fraction form
    18,092.20/27,138.30 = 16,479.40/x
  3. Step 3: Cross multiply
    18,092.20x = 27,138.30 × 16,479.40
  4. Step 4: Simplify right side
    18,092.20x = 447,222,901.02
  5. Step 5: Solve for x
    x = 447,222,901.02/18,092.20
  6. Step 6: Final answer
    x = 24,719.10

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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.