Home / 27,979.11-41,975.78-10,449.09

Finding the Fourth Proportional to 27,979.11, 41,975.78 and 10,449.09

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Solution

The fourth proportional to 27,979.11, 41,975.78 and 10,449.09 is: 15,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.11 : 41,975.78 = 10,449.09 : x
  2. Step 2: Convert to fraction form
    27,979.11/41,975.78 = 10,449.09/x
  3. Step 3: Cross multiply
    27,979.11x = 41,975.78 × 10,449.09
  4. Step 4: Simplify right side
    27,979.11x = 438,608,650.79
  5. Step 5: Solve for x
    x = 438,608,650.79/27,979.11
  6. Step 6: Final answer
    x = 15,676.29

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1.5x scale

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.