Home / 20,819.72-31,229.30-5,024.62

Finding the Fourth Proportional to 20,819.72, 31,229.30 and 5,024.62

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Solution

The fourth proportional to 20,819.72, 31,229.30 and 5,024.62 is: 7,536.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819.72 : 31,229.30 = 5,024.62 : x
  2. Step 2: Convert to fraction form
    20,819.72/31,229.30 = 5,024.62/x
  3. Step 3: Cross multiply
    20,819.72x = 31,229.30 × 5,024.62
  4. Step 4: Simplify right side
    20,819.72x = 156,915,416.96
  5. Step 5: Solve for x
    x = 156,915,416.96/20,819.72
  6. Step 6: Final answer
    x = 7,536.86

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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.