Home / 28,209.60-38,933.39-16,270.61

Finding the Fourth Proportional to 28,209.60, 38,933.39 and 16,270.61

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Solution

The fourth proportional to 28,209.60, 38,933.39 and 16,270.61 is: 22,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.60 : 38,933.39 = 16,270.61 : x
  2. Step 2: Convert to fraction form
    28,209.60/38,933.39 = 16,270.61/x
  3. Step 3: Cross multiply
    28,209.60x = 38,933.39 × 16,270.61
  4. Step 4: Simplify right side
    28,209.60x = 633,469,850.68
  5. Step 5: Solve for x
    x = 633,469,850.68/28,209.60
  6. Step 6: Final answer
    x = 22,455.83

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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.