Home / 21,902.20-32,853.30-13,132.60

Finding the Fourth Proportional to 21,902.20, 32,853.30 and 13,132.60

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Solution

The fourth proportional to 21,902.20, 32,853.30 and 13,132.60 is: 19,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.20 : 32,853.30 = 13,132.60 : x
  2. Step 2: Convert to fraction form
    21,902.20/32,853.30 = 13,132.60/x
  3. Step 3: Cross multiply
    21,902.20x = 32,853.30 × 13,132.60
  4. Step 4: Simplify right side
    21,902.20x = 431,449,247.58
  5. Step 5: Solve for x
    x = 431,449,247.58/21,902.20
  6. Step 6: Final answer
    x = 19,698.90

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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.