Home / 22,772.72-34,171.88-12,385.20

Finding the Fourth Proportional to 22,772.72, 34,171.88 and 12,385.20

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Solution

The fourth proportional to 22,772.72, 34,171.88 and 12,385.20 is: 18,584.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,772.72 : 34,171.88 = 12,385.20 : x
  2. Step 2: Convert to fraction form
    22,772.72/34,171.88 = 12,385.20/x
  3. Step 3: Cross multiply
    22,772.72x = 34,171.88 × 12,385.20
  4. Step 4: Simplify right side
    22,772.72x = 423,225,568.18
  5. Step 5: Solve for x
    x = 423,225,568.18/22,772.72
  6. Step 6: Final answer
    x = 18,584.76

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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.