Home / 20,139.96-27,793.26-11,760.60

Finding the Fourth Proportional to 20,139.96, 27,793.26 and 11,760.60

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Solution

The fourth proportional to 20,139.96, 27,793.26 and 11,760.60 is: 16,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139.96 : 27,793.26 = 11,760.60 : x
  2. Step 2: Convert to fraction form
    20,139.96/27,793.26 = 11,760.60/x
  3. Step 3: Cross multiply
    20,139.96x = 27,793.26 × 11,760.60
  4. Step 4: Simplify right side
    20,139.96x = 326,865,413.56
  5. Step 5: Solve for x
    x = 326,865,413.56/20,139.96
  6. Step 6: Final answer
    x = 16,229.70

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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.