Home / 22,193.25-30,626.53-12,121.70

Finding the Fourth Proportional to 22,193.25, 30,626.53 and 12,121.70

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Solution

The fourth proportional to 22,193.25, 30,626.53 and 12,121.70 is: 16,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,193.25 : 30,626.53 = 12,121.70 : x
  2. Step 2: Convert to fraction form
    22,193.25/30,626.53 = 12,121.70/x
  3. Step 3: Cross multiply
    22,193.25x = 30,626.53 × 12,121.70
  4. Step 4: Simplify right side
    22,193.25x = 371,245,470.72
  5. Step 5: Solve for x
    x = 371,245,470.72/22,193.25
  6. Step 6: Final answer
    x = 16,727.85

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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.