Home / 20,845.39-28,766.96-11,414.83

Finding the Fourth Proportional to 20,845.39, 28,766.96 and 11,414.83

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Solution

The fourth proportional to 20,845.39, 28,766.96 and 11,414.83 is: 15,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.39 : 28,766.96 = 11,414.83 : x
  2. Step 2: Convert to fraction form
    20,845.39/28,766.96 = 11,414.83/x
  3. Step 3: Cross multiply
    20,845.39x = 28,766.96 × 11,414.83
  4. Step 4: Simplify right side
    20,845.39x = 328,369,900.94
  5. Step 5: Solve for x
    x = 328,369,900.94/20,845.39
  6. Step 6: Final answer
    x = 15,752.64

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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.