Home / 28,091.24-42,142.94-8,371.38

Finding the Fourth Proportional to 28,091.24, 42,142.94 and 8,371.38

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Solution

The fourth proportional to 28,091.24, 42,142.94 and 8,371.38 is: 12,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.24 : 42,142.94 = 8,371.38 : x
  2. Step 2: Convert to fraction form
    28,091.24/42,142.94 = 8,371.38/x
  3. Step 3: Cross multiply
    28,091.24x = 42,142.94 × 8,371.38
  4. Step 4: Simplify right side
    28,091.24x = 352,794,523.20
  5. Step 5: Solve for x
    x = 352,794,523.20/28,091.24
  6. Step 6: Final answer
    x = 12,558.88

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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.