Home / 13,929.66-20,894.22-3,399.75

Finding the Fourth Proportional to 13,929.66, 20,894.22 and 3,399.75

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Solution

The fourth proportional to 13,929.66, 20,894.22 and 3,399.75 is: 5,099.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.66 : 20,894.22 = 3,399.75 : x
  2. Step 2: Convert to fraction form
    13,929.66/20,894.22 = 3,399.75/x
  3. Step 3: Cross multiply
    13,929.66x = 20,894.22 × 3,399.75
  4. Step 4: Simplify right side
    13,929.66x = 71,035,124.45
  5. Step 5: Solve for x
    x = 71,035,124.45/13,929.66
  6. Step 6: Final answer
    x = 5,099.56

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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.