Home / 13,842.46-20,767.13-3,982.40

Finding the Fourth Proportional to 13,842.46, 20,767.13 and 3,982.40

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Solution

The fourth proportional to 13,842.46, 20,767.13 and 3,982.40 is: 5,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.46 : 20,767.13 = 3,982.40 : x
  2. Step 2: Convert to fraction form
    13,842.46/20,767.13 = 3,982.40/x
  3. Step 3: Cross multiply
    13,842.46x = 20,767.13 × 3,982.40
  4. Step 4: Simplify right side
    13,842.46x = 82,702,894.76
  5. Step 5: Solve for x
    x = 82,702,894.76/13,842.46
  6. Step 6: Final answer
    x = 5,974.58

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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.