Home / 22,077.38-30,456.08-13,118.54

Finding the Fourth Proportional to 22,077.38, 30,456.08 and 13,118.54

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Solution

The fourth proportional to 22,077.38, 30,456.08 and 13,118.54 is: 18,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,077.38 : 30,456.08 = 13,118.54 : x
  2. Step 2: Convert to fraction form
    22,077.38/30,456.08 = 13,118.54/x
  3. Step 3: Cross multiply
    22,077.38x = 30,456.08 × 13,118.54
  4. Step 4: Simplify right side
    22,077.38x = 399,539,135.04
  5. Step 5: Solve for x
    x = 399,539,135.04/22,077.38
  6. Step 6: Final answer
    x = 18,097.21

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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.