Home / 43,821.30-65,725.28-12,228.04

Finding the Fourth Proportional to 43,821.30, 65,725.28 and 12,228.04

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Solution

The fourth proportional to 43,821.30, 65,725.28 and 12,228.04 is: 18,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,821.30 : 65,725.28 = 12,228.04 : x
  2. Step 2: Convert to fraction form
    43,821.30/65,725.28 = 12,228.04/x
  3. Step 3: Cross multiply
    43,821.30x = 65,725.28 × 12,228.04
  4. Step 4: Simplify right side
    43,821.30x = 803,691,352.85
  5. Step 5: Solve for x
    x = 803,691,352.85/43,821.30
  6. Step 6: Final answer
    x = 18,340.20

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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.