Home / 13,829.85-20,745.36-3,968.10

Finding the Fourth Proportional to 13,829.85, 20,745.36 and 3,968.10

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Solution

The fourth proportional to 13,829.85, 20,745.36 and 3,968.10 is: 5,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.85 : 20,745.36 = 3,968.10 : x
  2. Step 2: Convert to fraction form
    13,829.85/20,745.36 = 3,968.10/x
  3. Step 3: Cross multiply
    13,829.85x = 20,745.36 × 3,968.10
  4. Step 4: Simplify right side
    13,829.85x = 82,319,663.02
  5. Step 5: Solve for x
    x = 82,319,663.02/13,829.85
  6. Step 6: Final answer
    x = 5,952.32

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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.