Home / 13,822.80-20,735.02-3,961.86

Finding the Fourth Proportional to 13,822.80, 20,735.02 and 3,961.86

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Solution

The fourth proportional to 13,822.80, 20,735.02 and 3,961.86 is: 5,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.80 : 20,735.02 = 3,961.86 : x
  2. Step 2: Convert to fraction form
    13,822.80/20,735.02 = 3,961.86/x
  3. Step 3: Cross multiply
    13,822.80x = 20,735.02 × 3,961.86
  4. Step 4: Simplify right side
    13,822.80x = 82,149,246.34
  5. Step 5: Solve for x
    x = 82,149,246.34/13,822.80
  6. Step 6: Final answer
    x = 5,943.03

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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.