Home / 13,842.38-20,764.02-3,982.16

Finding the Fourth Proportional to 13,842.38, 20,764.02 and 3,982.16

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Solution

The fourth proportional to 13,842.38, 20,764.02 and 3,982.16 is: 5,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.38 : 20,764.02 = 3,982.16 : x
  2. Step 2: Convert to fraction form
    13,842.38/20,764.02 = 3,982.16/x
  3. Step 3: Cross multiply
    13,842.38x = 20,764.02 × 3,982.16
  4. Step 4: Simplify right side
    13,842.38x = 82,685,649.88
  5. Step 5: Solve for x
    x = 82,685,649.88/13,842.38
  6. Step 6: Final answer
    x = 5,973.37

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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.