Home / 20,232.60-30,366.90-11,902.20

Finding the Fourth Proportional to 20,232.60, 30,366.90 and 11,902.20

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Solution

The fourth proportional to 20,232.60, 30,366.90 and 11,902.20 is: 17,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.60 : 30,366.90 = 11,902.20 : x
  2. Step 2: Convert to fraction form
    20,232.60/30,366.90 = 11,902.20/x
  3. Step 3: Cross multiply
    20,232.60x = 30,366.90 × 11,902.20
  4. Step 4: Simplify right side
    20,232.60x = 361,432,917.18
  5. Step 5: Solve for x
    x = 361,432,917.18/20,232.60
  6. Step 6: Final answer
    x = 17,863.89

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1.5x scale

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.