Home / 22,147.72-30,571.26-13,198.03

Finding the Fourth Proportional to 22,147.72, 30,571.26 and 13,198.03

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Solution

The fourth proportional to 22,147.72, 30,571.26 and 13,198.03 is: 18,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,147.72 : 30,571.26 = 13,198.03 : x
  2. Step 2: Convert to fraction form
    22,147.72/30,571.26 = 13,198.03/x
  3. Step 3: Cross multiply
    22,147.72x = 30,571.26 × 13,198.03
  4. Step 4: Simplify right side
    22,147.72x = 403,480,280.70
  5. Step 5: Solve for x
    x = 403,480,280.70/22,147.72
  6. Step 6: Final answer
    x = 18,217.69

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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.