Home / 22,775.38-31,420.58-15,122.23

Finding the Fourth Proportional to 22,775.38, 31,420.58 and 15,122.23

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Solution

The fourth proportional to 22,775.38, 31,420.58 and 15,122.23 is: 20,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.38 : 31,420.58 = 15,122.23 : x
  2. Step 2: Convert to fraction form
    22,775.38/31,420.58 = 15,122.23/x
  3. Step 3: Cross multiply
    22,775.38x = 31,420.58 × 15,122.23
  4. Step 4: Simplify right side
    22,775.38x = 475,149,083.33
  5. Step 5: Solve for x
    x = 475,149,083.33/22,775.38
  6. Step 6: Final answer
    x = 20,862.40

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Half scale
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Double scale
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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.