Home / 13,929.16-20,893.47-3,399.25

Finding the Fourth Proportional to 13,929.16, 20,893.47 and 3,399.25

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Solution

The fourth proportional to 13,929.16, 20,893.47 and 3,399.25 is: 5,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.16 : 20,893.47 = 3,399.25 : x
  2. Step 2: Convert to fraction form
    13,929.16/20,893.47 = 3,399.25/x
  3. Step 3: Cross multiply
    13,929.16x = 20,893.47 × 3,399.25
  4. Step 4: Simplify right side
    13,929.16x = 71,022,127.90
  5. Step 5: Solve for x
    x = 71,022,127.90/13,929.16
  6. Step 6: Final answer
    x = 5,098.81

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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.