Home / 27,139.10-40,708.65-17,321.90

Finding the Fourth Proportional to 27,139.10, 40,708.65 and 17,321.90

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Solution

The fourth proportional to 27,139.10, 40,708.65 and 17,321.90 is: 25,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.10 : 40,708.65 = 17,321.90 : x
  2. Step 2: Convert to fraction form
    27,139.10/40,708.65 = 17,321.90/x
  3. Step 3: Cross multiply
    27,139.10x = 40,708.65 × 17,321.90
  4. Step 4: Simplify right side
    27,139.10x = 705,151,164.44
  5. Step 5: Solve for x
    x = 705,151,164.44/27,139.10
  6. Step 6: Final answer
    x = 25,982.85

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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.