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Finding the Fourth Proportional to 29,208.31, 43,812.48 and 8,147.50

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Solution

The fourth proportional to 29,208.31, 43,812.48 and 8,147.50 is: 12,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,208.31 : 43,812.48 = 8,147.50 : x
  2. Step 2: Convert to fraction form
    29,208.31/43,812.48 = 8,147.50/x
  3. Step 3: Cross multiply
    29,208.31x = 43,812.48 × 8,147.50
  4. Step 4: Simplify right side
    29,208.31x = 356,962,180.80
  5. Step 5: Solve for x
    x = 356,962,180.80/29,208.31
  6. Step 6: Final answer
    x = 12,221.25

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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.