Home / 22,061.66-30,445.29-11,990.12

Finding the Fourth Proportional to 22,061.66, 30,445.29 and 11,990.12

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Solution

The fourth proportional to 22,061.66, 30,445.29 and 11,990.12 is: 16,546.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,061.66 : 30,445.29 = 11,990.12 : x
  2. Step 2: Convert to fraction form
    22,061.66/30,445.29 = 11,990.12/x
  3. Step 3: Cross multiply
    22,061.66x = 30,445.29 × 11,990.12
  4. Step 4: Simplify right side
    22,061.66x = 365,042,791.25
  5. Step 5: Solve for x
    x = 365,042,791.25/22,061.66
  6. Step 6: Final answer
    x = 16,546.48

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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.