Home / 23,781.11-32,743.23-20,188.61

Finding the Fourth Proportional to 23,781.11, 32,743.23 and 20,188.61

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Solution

The fourth proportional to 23,781.11, 32,743.23 and 20,188.61 is: 27,796.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,781.11 : 32,743.23 = 20,188.61 : x
  2. Step 2: Convert to fraction form
    23,781.11/32,743.23 = 20,188.61/x
  3. Step 3: Cross multiply
    23,781.11x = 32,743.23 × 20,188.61
  4. Step 4: Simplify right side
    23,781.11x = 661,040,136.89
  5. Step 5: Solve for x
    x = 661,040,136.89/23,781.11
  6. Step 6: Final answer
    x = 27,796.86

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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.