Home / 20,213.43-30,333.11-9,819.51

Finding the Fourth Proportional to 20,213.43, 30,333.11 and 9,819.51

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Solution

The fourth proportional to 20,213.43, 30,333.11 and 9,819.51 is: 14,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.43 : 30,333.11 = 9,819.51 : x
  2. Step 2: Convert to fraction form
    20,213.43/30,333.11 = 9,819.51/x
  3. Step 3: Cross multiply
    20,213.43x = 30,333.11 × 9,819.51
  4. Step 4: Simplify right side
    20,213.43x = 297,856,227.88
  5. Step 5: Solve for x
    x = 297,856,227.88/20,213.43
  6. Step 6: Final answer
    x = 14,735.56

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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.