Home / 22,682.38-31,299.56-13,120.74

Finding the Fourth Proportional to 22,682.38, 31,299.56 and 13,120.74

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Solution

The fourth proportional to 22,682.38, 31,299.56 and 13,120.74 is: 18,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,682.38 : 31,299.56 = 13,120.74 : x
  2. Step 2: Convert to fraction form
    22,682.38/31,299.56 = 13,120.74/x
  3. Step 3: Cross multiply
    22,682.38x = 31,299.56 × 13,120.74
  4. Step 4: Simplify right side
    22,682.38x = 410,673,388.87
  5. Step 5: Solve for x
    x = 410,673,388.87/22,682.38
  6. Step 6: Final answer
    x = 18,105.39

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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.