Home / 20,845.68-28,767.72-11,414.44

Finding the Fourth Proportional to 20,845.68, 28,767.72 and 11,414.44

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Solution

The fourth proportional to 20,845.68, 28,767.72 and 11,414.44 is: 15,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.68 : 28,767.72 = 11,414.44 : x
  2. Step 2: Convert to fraction form
    20,845.68/28,767.72 = 11,414.44/x
  3. Step 3: Cross multiply
    20,845.68x = 28,767.72 × 11,414.44
  4. Step 4: Simplify right side
    20,845.68x = 328,367,413.88
  5. Step 5: Solve for x
    x = 328,367,413.88/20,845.68
  6. Step 6: Final answer
    x = 15,752.30

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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.