Home / 20,744.92-28,630.19-12,683.29

Finding the Fourth Proportional to 20,744.92, 28,630.19 and 12,683.29

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Solution

The fourth proportional to 20,744.92, 28,630.19 and 12,683.29 is: 17,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.92 : 28,630.19 = 12,683.29 : x
  2. Step 2: Convert to fraction form
    20,744.92/28,630.19 = 12,683.29/x
  3. Step 3: Cross multiply
    20,744.92x = 28,630.19 × 12,683.29
  4. Step 4: Simplify right side
    20,744.92x = 363,125,002.53
  5. Step 5: Solve for x
    x = 363,125,002.53/20,744.92
  6. Step 6: Final answer
    x = 17,504.29

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Double scale
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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.