Home / 21,200.43-31,793.21-8,546.41

Finding the Fourth Proportional to 21,200.43, 31,793.21 and 8,546.41

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Solution

The fourth proportional to 21,200.43, 31,793.21 and 8,546.41 is: 12,816.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.43 : 31,793.21 = 8,546.41 : x
  2. Step 2: Convert to fraction form
    21,200.43/31,793.21 = 8,546.41/x
  3. Step 3: Cross multiply
    21,200.43x = 31,793.21 × 8,546.41
  4. Step 4: Simplify right side
    21,200.43x = 271,717,765.14
  5. Step 5: Solve for x
    x = 271,717,765.14/21,200.43
  6. Step 6: Final answer
    x = 12,816.62

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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.