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Finding the Fourth Proportional to 21,819.22, 32,728.02 and 6,236.80

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Solution

The fourth proportional to 21,819.22, 32,728.02 and 6,236.80 is: 9,354.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.22 : 32,728.02 = 6,236.80 : x
  2. Step 2: Convert to fraction form
    21,819.22/32,728.02 = 6,236.80/x
  3. Step 3: Cross multiply
    21,819.22x = 32,728.02 × 6,236.80
  4. Step 4: Simplify right side
    21,819.22x = 204,118,115.14
  5. Step 5: Solve for x
    x = 204,118,115.14/21,819.22
  6. Step 6: Final answer
    x = 9,354.97

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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.