Home / 22,318.11-30,787.38-15,148.44

Finding the Fourth Proportional to 22,318.11, 30,787.38 and 15,148.44

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Solution

The fourth proportional to 22,318.11, 30,787.38 and 15,148.44 is: 20,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,318.11 : 30,787.38 = 15,148.44 : x
  2. Step 2: Convert to fraction form
    22,318.11/30,787.38 = 15,148.44/x
  3. Step 3: Cross multiply
    22,318.11x = 30,787.38 × 15,148.44
  4. Step 4: Simplify right side
    22,318.11x = 466,380,778.69
  5. Step 5: Solve for x
    x = 466,380,778.69/22,318.11
  6. Step 6: Final answer
    x = 20,896.97

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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.