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Finding the Fourth Proportional to 22,017.20, 33,025.80 and 12,151.40

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Solution

The fourth proportional to 22,017.20, 33,025.80 and 12,151.40 is: 18,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.20 : 33,025.80 = 12,151.40 : x
  2. Step 2: Convert to fraction form
    22,017.20/33,025.80 = 12,151.40/x
  3. Step 3: Cross multiply
    22,017.20x = 33,025.80 × 12,151.40
  4. Step 4: Simplify right side
    22,017.20x = 401,309,706.12
  5. Step 5: Solve for x
    x = 401,309,706.12/22,017.20
  6. Step 6: Final answer
    x = 18,227.10

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