Home / 28,236.27-42,354.42-7,177.89

Finding the Fourth Proportional to 28,236.27, 42,354.42 and 7,177.89

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Solution

The fourth proportional to 28,236.27, 42,354.42 and 7,177.89 is: 10,766.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.27 : 42,354.42 = 7,177.89 : x
  2. Step 2: Convert to fraction form
    28,236.27/42,354.42 = 7,177.89/x
  3. Step 3: Cross multiply
    28,236.27x = 42,354.42 × 7,177.89
  4. Step 4: Simplify right side
    28,236.27x = 304,015,367.77
  5. Step 5: Solve for x
    x = 304,015,367.77/28,236.27
  6. Step 6: Final answer
    x = 10,766.84

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.