Home / 22,678.38-31,294.05-13,116.74

Finding the Fourth Proportional to 22,678.38, 31,294.05 and 13,116.74

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Solution

The fourth proportional to 22,678.38, 31,294.05 and 13,116.74 is: 18,099.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.38 : 31,294.05 = 13,116.74 : x
  2. Step 2: Convert to fraction form
    22,678.38/31,294.05 = 13,116.74/x
  3. Step 3: Cross multiply
    22,678.38x = 31,294.05 × 13,116.74
  4. Step 4: Simplify right side
    22,678.38x = 410,475,711.74
  5. Step 5: Solve for x
    x = 410,475,711.74/22,678.38
  6. Step 6: Final answer
    x = 18,099.87

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Half scale
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Double scale
Find fourth proportional to 22,679.38, 31,295.43 and 13,117.74
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.