Home / 20,227.50-30,341.24-20,198.30

Finding the Fourth Proportional to 20,227.50, 30,341.24 and 20,198.30

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Solution

The fourth proportional to 20,227.50, 30,341.24 and 20,198.30 is: 30,297.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.50 : 30,341.24 = 20,198.30 : x
  2. Step 2: Convert to fraction form
    20,227.50/30,341.24 = 20,198.30/x
  3. Step 3: Cross multiply
    20,227.50x = 30,341.24 × 20,198.30
  4. Step 4: Simplify right side
    20,227.50x = 612,841,467.89
  5. Step 5: Solve for x
    x = 612,841,467.89/20,227.50
  6. Step 6: Final answer
    x = 30,297.44

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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.