Home / 22,180.13-30,605.67-13,228.68

Finding the Fourth Proportional to 22,180.13, 30,605.67 and 13,228.68

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Solution

The fourth proportional to 22,180.13, 30,605.67 and 13,228.68 is: 18,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.13 : 30,605.67 = 13,228.68 : x
  2. Step 2: Convert to fraction form
    22,180.13/30,605.67 = 13,228.68/x
  3. Step 3: Cross multiply
    22,180.13x = 30,605.67 × 13,228.68
  4. Step 4: Simplify right side
    22,180.13x = 404,872,614.62
  5. Step 5: Solve for x
    x = 404,872,614.62/22,180.13
  6. Step 6: Final answer
    x = 18,253.85

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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.