Home / 22,578.38-31,217.62-19,775.84

Finding the Fourth Proportional to 22,578.38, 31,217.62 and 19,775.84

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Solution

The fourth proportional to 22,578.38, 31,217.62 and 19,775.84 is: 27,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.38 : 31,217.62 = 19,775.84 : x
  2. Step 2: Convert to fraction form
    22,578.38/31,217.62 = 19,775.84/x
  3. Step 3: Cross multiply
    22,578.38x = 31,217.62 × 19,775.84
  4. Step 4: Simplify right side
    22,578.38x = 617,354,658.30
  5. Step 5: Solve for x
    x = 617,354,658.30/22,578.38
  6. Step 6: Final answer
    x = 27,342.73

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Half scale
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Double scale
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Similar ratio
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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.