Home / 27,979.62-41,986.70-11,339.79

Finding the Fourth Proportional to 27,979.62, 41,986.70 and 11,339.79

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Solution

The fourth proportional to 27,979.62, 41,986.70 and 11,339.79 is: 17,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.62 : 41,986.70 = 11,339.79 : x
  2. Step 2: Convert to fraction form
    27,979.62/41,986.70 = 11,339.79/x
  3. Step 3: Cross multiply
    27,979.62x = 41,986.70 × 11,339.79
  4. Step 4: Simplify right side
    27,979.62x = 476,120,360.79
  5. Step 5: Solve for x
    x = 476,120,360.79/27,979.62
  6. Step 6: Final answer
    x = 17,016.68

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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.