Home / 20,732.94-28,614.42-11,778.66

Finding the Fourth Proportional to 20,732.94, 28,614.42 and 11,778.66

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Solution

The fourth proportional to 20,732.94, 28,614.42 and 11,778.66 is: 16,256.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.94 : 28,614.42 = 11,778.66 : x
  2. Step 2: Convert to fraction form
    20,732.94/28,614.42 = 11,778.66/x
  3. Step 3: Cross multiply
    20,732.94x = 28,614.42 × 11,778.66
  4. Step 4: Simplify right side
    20,732.94x = 337,039,524.28
  5. Step 5: Solve for x
    x = 337,039,524.28/20,732.94
  6. Step 6: Final answer
    x = 16,256.23

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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.