Home / 20,982.26-31,473.66-6,191.39

Finding the Fourth Proportional to 20,982.26, 31,473.66 and 6,191.39

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Solution

The fourth proportional to 20,982.26, 31,473.66 and 6,191.39 is: 9,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.26 : 31,473.66 = 6,191.39 : x
  2. Step 2: Convert to fraction form
    20,982.26/31,473.66 = 6,191.39/x
  3. Step 3: Cross multiply
    20,982.26x = 31,473.66 × 6,191.39
  4. Step 4: Simplify right side
    20,982.26x = 194,865,805.69
  5. Step 5: Solve for x
    x = 194,865,805.69/20,982.26
  6. Step 6: Final answer
    x = 9,287.17

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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.