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Finding the Fourth Proportional to 22,117.20, 33,127.20 and 18,229.20

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Solution

The fourth proportional to 22,117.20, 33,127.20 and 18,229.20 is: 27,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.20 : 33,127.20 = 18,229.20 : x
  2. Step 2: Convert to fraction form
    22,117.20/33,127.20 = 18,229.20/x
  3. Step 3: Cross multiply
    22,117.20x = 33,127.20 × 18,229.20
  4. Step 4: Simplify right side
    22,117.20x = 603,882,354.24
  5. Step 5: Solve for x
    x = 603,882,354.24/22,117.20
  6. Step 6: Final answer
    x = 27,303.74

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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.