Home / 22,791.68-31,450.39-13,229.03

Finding the Fourth Proportional to 22,791.68, 31,450.39 and 13,229.03

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Solution

The fourth proportional to 22,791.68, 31,450.39 and 13,229.03 is: 18,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.68 : 31,450.39 = 13,229.03 : x
  2. Step 2: Convert to fraction form
    22,791.68/31,450.39 = 13,229.03/x
  3. Step 3: Cross multiply
    22,791.68x = 31,450.39 × 13,229.03
  4. Step 4: Simplify right side
    22,791.68x = 416,058,119.75
  5. Step 5: Solve for x
    x = 416,058,119.75/22,791.68
  6. Step 6: Final answer
    x = 18,254.82

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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.