Home / 22,171.38-30,596.58-13,222.90

Finding the Fourth Proportional to 22,171.38, 30,596.58 and 13,222.90

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Solution

The fourth proportional to 22,171.38, 30,596.58 and 13,222.90 is: 18,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,171.38 : 30,596.58 = 13,222.90 : x
  2. Step 2: Convert to fraction form
    22,171.38/30,596.58 = 13,222.90/x
  3. Step 3: Cross multiply
    22,171.38x = 30,596.58 × 13,222.90
  4. Step 4: Simplify right side
    22,171.38x = 404,575,517.68
  5. Step 5: Solve for x
    x = 404,575,517.68/22,171.38
  6. Step 6: Final answer
    x = 18,247.65

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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.