Home / 27,939.38-41,871.90-20,508.98

Finding the Fourth Proportional to 27,939.38, 41,871.90 and 20,508.98

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Solution

The fourth proportional to 27,939.38, 41,871.90 and 20,508.98 is: 30,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,939.38 : 41,871.90 = 20,508.98 : x
  2. Step 2: Convert to fraction form
    27,939.38/41,871.90 = 20,508.98/x
  3. Step 3: Cross multiply
    27,939.38x = 41,871.90 × 20,508.98
  4. Step 4: Simplify right side
    27,939.38x = 858,749,959.66
  5. Step 5: Solve for x
    x = 858,749,959.66/27,939.38
  6. Step 6: Final answer
    x = 30,736.19

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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.