Home / 20,683.92-28,543.20-11,732.24

Finding the Fourth Proportional to 20,683.92, 28,543.20 and 11,732.24

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Solution

The fourth proportional to 20,683.92, 28,543.20 and 11,732.24 is: 16,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.92 : 28,543.20 = 11,732.24 : x
  2. Step 2: Convert to fraction form
    20,683.92/28,543.20 = 11,732.24/x
  3. Step 3: Cross multiply
    20,683.92x = 28,543.20 × 11,732.24
  4. Step 4: Simplify right side
    20,683.92x = 334,875,672.77
  5. Step 5: Solve for x
    x = 334,875,672.77/20,683.92
  6. Step 6: Final answer
    x = 16,190.15

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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.