Home / 31,160.85-43,003.62-17,013.75

Finding the Fourth Proportional to 31,160.85, 43,003.62 and 17,013.75

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Solution

The fourth proportional to 31,160.85, 43,003.62 and 17,013.75 is: 23,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,160.85 : 43,003.62 = 17,013.75 : x
  2. Step 2: Convert to fraction form
    31,160.85/43,003.62 = 17,013.75/x
  3. Step 3: Cross multiply
    31,160.85x = 43,003.62 × 17,013.75
  4. Step 4: Simplify right side
    31,160.85x = 731,652,839.78
  5. Step 5: Solve for x
    x = 731,652,839.78/31,160.85
  6. Step 6: Final answer
    x = 23,479.87

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1.5x scale

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.