Home / 28,971.46-43,456.38-9,251.20

Finding the Fourth Proportional to 28,971.46, 43,456.38 and 9,251.20

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Solution

The fourth proportional to 28,971.46, 43,456.38 and 9,251.20 is: 13,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.46 : 43,456.38 = 9,251.20 : x
  2. Step 2: Convert to fraction form
    28,971.46/43,456.38 = 9,251.20/x
  3. Step 3: Cross multiply
    28,971.46x = 43,456.38 × 9,251.20
  4. Step 4: Simplify right side
    28,971.46x = 402,023,662.66
  5. Step 5: Solve for x
    x = 402,023,662.66/28,971.46
  6. Step 6: Final answer
    x = 13,876.54

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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.