Home / 13,821.18-20,727.96-3,823.53

Finding the Fourth Proportional to 13,821.18, 20,727.96 and 3,823.53

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Solution

The fourth proportional to 13,821.18, 20,727.96 and 3,823.53 is: 5,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.18 : 20,727.96 = 3,823.53 : x
  2. Step 2: Convert to fraction form
    13,821.18/20,727.96 = 3,823.53/x
  3. Step 3: Cross multiply
    13,821.18x = 20,727.96 × 3,823.53
  4. Step 4: Simplify right side
    13,821.18x = 79,253,976.90
  5. Step 5: Solve for x
    x = 79,253,976.90/13,821.18
  6. Step 6: Final answer
    x = 5,734.24

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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.