Home / 20,922.43-31,379.01-6,132.49

Finding the Fourth Proportional to 20,922.43, 31,379.01 and 6,132.49

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Solution

The fourth proportional to 20,922.43, 31,379.01 and 6,132.49 is: 9,197.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.43 : 31,379.01 = 6,132.49 : x
  2. Step 2: Convert to fraction form
    20,922.43/31,379.01 = 6,132.49/x
  3. Step 3: Cross multiply
    20,922.43x = 31,379.01 × 6,132.49
  4. Step 4: Simplify right side
    20,922.43x = 192,431,465.03
  5. Step 5: Solve for x
    x = 192,431,465.03/20,922.43
  6. Step 6: Final answer
    x = 9,197.38

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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.