Home / 22,599.46-31,121.49-21,155.38

Finding the Fourth Proportional to 22,599.46, 31,121.49 and 21,155.38

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Solution

The fourth proportional to 22,599.46, 31,121.49 and 21,155.38 is: 29,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,599.46 : 31,121.49 = 21,155.38 : x
  2. Step 2: Convert to fraction form
    22,599.46/31,121.49 = 21,155.38/x
  3. Step 3: Cross multiply
    22,599.46x = 31,121.49 × 21,155.38
  4. Step 4: Simplify right side
    22,599.46x = 658,386,866.29
  5. Step 5: Solve for x
    x = 658,386,866.29/22,599.46
  6. Step 6: Final answer
    x = 29,132.86

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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.