Home / 27,911.52-41,871.84-8,190.72

Finding the Fourth Proportional to 27,911.52, 41,871.84 and 8,190.72

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Solution

The fourth proportional to 27,911.52, 41,871.84 and 8,190.72 is: 12,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.52 : 41,871.84 = 8,190.72 : x
  2. Step 2: Convert to fraction form
    27,911.52/41,871.84 = 8,190.72/x
  3. Step 3: Cross multiply
    27,911.52x = 41,871.84 × 8,190.72
  4. Step 4: Simplify right side
    27,911.52x = 342,960,517.32
  5. Step 5: Solve for x
    x = 342,960,517.32/27,911.52
  6. Step 6: Final answer
    x = 12,287.42

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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.