Home / 20,077.92-27,706.38-11,124.90

Finding the Fourth Proportional to 20,077.92, 27,706.38 and 11,124.90

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Solution

The fourth proportional to 20,077.92, 27,706.38 and 11,124.90 is: 15,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.92 : 27,706.38 = 11,124.90 : x
  2. Step 2: Convert to fraction form
    20,077.92/27,706.38 = 11,124.90/x
  3. Step 3: Cross multiply
    20,077.92x = 27,706.38 × 11,124.90
  4. Step 4: Simplify right side
    20,077.92x = 308,230,706.86
  5. Step 5: Solve for x
    x = 308,230,706.86/20,077.92
  6. Step 6: Final answer
    x = 15,351.73

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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.