Home / 39,939.64-55,116.33-22,034.78

Finding the Fourth Proportional to 39,939.64, 55,116.33 and 22,034.78

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Solution

The fourth proportional to 39,939.64, 55,116.33 and 22,034.78 is: 30,407.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,939.64 : 55,116.33 = 22,034.78 : x
  2. Step 2: Convert to fraction form
    39,939.64/55,116.33 = 22,034.78/x
  3. Step 3: Cross multiply
    39,939.64x = 55,116.33 × 22,034.78
  4. Step 4: Simplify right side
    39,939.64x = 1,214,476,205.96
  5. Step 5: Solve for x
    x = 1,214,476,205.96/39,939.64
  6. Step 6: Final answer
    x = 30,407.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.