Home / 22,042.76-30,418.89-11,971.13

Finding the Fourth Proportional to 22,042.76, 30,418.89 and 11,971.13

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Solution

The fourth proportional to 22,042.76, 30,418.89 and 11,971.13 is: 16,520.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,042.76 : 30,418.89 = 11,971.13 : x
  2. Step 2: Convert to fraction form
    22,042.76/30,418.89 = 11,971.13/x
  3. Step 3: Cross multiply
    22,042.76x = 30,418.89 × 11,971.13
  4. Step 4: Simplify right side
    22,042.76x = 364,148,334.55
  5. Step 5: Solve for x
    x = 364,148,334.55/22,042.76
  6. Step 6: Final answer
    x = 16,520.09

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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.