Home / 20,844.88-28,767.84-11,414.80

Finding the Fourth Proportional to 20,844.88, 28,767.84 and 11,414.80

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Solution

The fourth proportional to 20,844.88, 28,767.84 and 11,414.80 is: 15,753.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.88 : 28,767.84 = 11,414.80 : x
  2. Step 2: Convert to fraction form
    20,844.88/28,767.84 = 11,414.80/x
  3. Step 3: Cross multiply
    20,844.88x = 28,767.84 × 11,414.80
  4. Step 4: Simplify right side
    20,844.88x = 328,379,140.03
  5. Step 5: Solve for x
    x = 328,379,140.03/20,844.88
  6. Step 6: Final answer
    x = 15,753.47

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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.