Home / 20,620.80-30,932.82-5,829.48

Finding the Fourth Proportional to 20,620.80, 30,932.82 and 5,829.48

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Solution

The fourth proportional to 20,620.80, 30,932.82 and 5,829.48 is: 8,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.80 : 30,932.82 = 5,829.48 : x
  2. Step 2: Convert to fraction form
    20,620.80/30,932.82 = 5,829.48/x
  3. Step 3: Cross multiply
    20,620.80x = 30,932.82 × 5,829.48
  4. Step 4: Simplify right side
    20,620.80x = 180,322,255.53
  5. Step 5: Solve for x
    x = 180,322,255.53/20,620.80
  6. Step 6: Final answer
    x = 8,744.68

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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.