Home / 13,821.60-20,732.40-3,433.35

Finding the Fourth Proportional to 13,821.60, 20,732.40 and 3,433.35

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Solution

The fourth proportional to 13,821.60, 20,732.40 and 3,433.35 is: 5,150.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.60 : 20,732.40 = 3,433.35 : x
  2. Step 2: Convert to fraction form
    13,821.60/20,732.40 = 3,433.35/x
  3. Step 3: Cross multiply
    13,821.60x = 20,732.40 × 3,433.35
  4. Step 4: Simplify right side
    13,821.60x = 71,181,585.54
  5. Step 5: Solve for x
    x = 71,181,585.54/13,821.60
  6. Step 6: Final answer
    x = 5,150.03

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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.