Home / 27,629.20-41,449.20-10,986.40

Finding the Fourth Proportional to 27,629.20, 41,449.20 and 10,986.40

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Solution

The fourth proportional to 27,629.20, 41,449.20 and 10,986.40 is: 16,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.20 : 41,449.20 = 10,986.40 : x
  2. Step 2: Convert to fraction form
    27,629.20/41,449.20 = 10,986.40/x
  3. Step 3: Cross multiply
    27,629.20x = 41,449.20 × 10,986.40
  4. Step 4: Simplify right side
    27,629.20x = 455,377,490.88
  5. Step 5: Solve for x
    x = 455,377,490.88/27,629.20
  6. Step 6: Final answer
    x = 16,481.75

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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.