Home / 22,917.20-34,318.20-18,309.20

Finding the Fourth Proportional to 22,917.20, 34,318.20 and 18,309.20

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Solution

The fourth proportional to 22,917.20, 34,318.20 and 18,309.20 is: 27,417.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,917.20 : 34,318.20 = 18,309.20 : x
  2. Step 2: Convert to fraction form
    22,917.20/34,318.20 = 18,309.20/x
  3. Step 3: Cross multiply
    22,917.20x = 34,318.20 × 18,309.20
  4. Step 4: Simplify right side
    22,917.20x = 628,338,787.44
  5. Step 5: Solve for x
    x = 628,338,787.44/22,917.20
  6. Step 6: Final answer
    x = 27,417.78

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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.