Home / 22,862.60-31,549.66-12,791.21

Finding the Fourth Proportional to 22,862.60, 31,549.66 and 12,791.21

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Solution

The fourth proportional to 22,862.60, 31,549.66 and 12,791.21 is: 17,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,862.60 : 31,549.66 = 12,791.21 : x
  2. Step 2: Convert to fraction form
    22,862.60/31,549.66 = 12,791.21/x
  3. Step 3: Cross multiply
    22,862.60x = 31,549.66 × 12,791.21
  4. Step 4: Simplify right side
    22,862.60x = 403,558,373.38
  5. Step 5: Solve for x
    x = 403,558,373.38/22,862.60
  6. Step 6: Final answer
    x = 17,651.47

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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.