Home / 20,326.26-30,489.39-13,399.14

Finding the Fourth Proportional to 20,326.26, 30,489.39 and 13,399.14

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Solution

The fourth proportional to 20,326.26, 30,489.39 and 13,399.14 is: 20,098.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.26 : 30,489.39 = 13,399.14 : x
  2. Step 2: Convert to fraction form
    20,326.26/30,489.39 = 13,399.14/x
  3. Step 3: Cross multiply
    20,326.26x = 30,489.39 × 13,399.14
  4. Step 4: Simplify right side
    20,326.26x = 408,531,550.26
  5. Step 5: Solve for x
    x = 408,531,550.26/20,326.26
  6. Step 6: Final answer
    x = 20,098.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.