Home / 13,824.85-20,737.25-3,436.60

Finding the Fourth Proportional to 13,824.85, 20,737.25 and 3,436.60

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Solution

The fourth proportional to 13,824.85, 20,737.25 and 3,436.60 is: 5,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.85 : 20,737.25 = 3,436.60 : x
  2. Step 2: Convert to fraction form
    13,824.85/20,737.25 = 3,436.60/x
  3. Step 3: Cross multiply
    13,824.85x = 20,737.25 × 3,436.60
  4. Step 4: Simplify right side
    13,824.85x = 71,265,529.66
  5. Step 5: Solve for x
    x = 71,265,529.66/13,824.85
  6. Step 6: Final answer
    x = 5,154.89

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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.