Home / 28,899.28-43,350.42-9,179.38

Finding the Fourth Proportional to 28,899.28, 43,350.42 and 9,179.38

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Solution

The fourth proportional to 28,899.28, 43,350.42 and 9,179.38 is: 13,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.28 : 43,350.42 = 9,179.38 : x
  2. Step 2: Convert to fraction form
    28,899.28/43,350.42 = 9,179.38/x
  3. Step 3: Cross multiply
    28,899.28x = 43,350.42 × 9,179.38
  4. Step 4: Simplify right side
    28,899.28x = 397,929,978.34
  5. Step 5: Solve for x
    x = 397,929,978.34/28,899.28
  6. Step 6: Final answer
    x = 13,769.55

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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.