Home / 20,982.26-31,463.66-7,825.16

Finding the Fourth Proportional to 20,982.26, 31,463.66 and 7,825.16

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Solution

The fourth proportional to 20,982.26, 31,463.66 and 7,825.16 is: 11,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.26 : 31,463.66 = 7,825.16 : x
  2. Step 2: Convert to fraction form
    20,982.26/31,463.66 = 7,825.16/x
  3. Step 3: Cross multiply
    20,982.26x = 31,463.66 × 7,825.16
  4. Step 4: Simplify right side
    20,982.26x = 246,208,173.69
  5. Step 5: Solve for x
    x = 246,208,173.69/20,982.26
  6. Step 6: Final answer
    x = 11,734.11

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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.