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Finding the Fourth Proportional to 28,608.36, 42,917.12 and 8,882.29

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Solution

The fourth proportional to 28,608.36, 42,917.12 and 8,882.29 is: 13,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.36 : 42,917.12 = 8,882.29 : x
  2. Step 2: Convert to fraction form
    28,608.36/42,917.12 = 8,882.29/x
  3. Step 3: Cross multiply
    28,608.36x = 42,917.12 × 8,882.29
  4. Step 4: Simplify right side
    28,608.36x = 381,202,305.80
  5. Step 5: Solve for x
    x = 381,202,305.80/28,608.36
  6. Step 6: Final answer
    x = 13,324.86

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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.