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Finding the Fourth Proportional to 18,080.20, 24,981.78 and 16,136.20

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Solution

The fourth proportional to 18,080.20, 24,981.78 and 16,136.20 is: 22,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.20 : 24,981.78 = 16,136.20 : x
  2. Step 2: Convert to fraction form
    18,080.20/24,981.78 = 16,136.20/x
  3. Step 3: Cross multiply
    18,080.20x = 24,981.78 × 16,136.20
  4. Step 4: Simplify right side
    18,080.20x = 403,110,998.44
  5. Step 5: Solve for x
    x = 403,110,998.44/18,080.20
  6. Step 6: Final answer
    x = 22,295.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.