Home / 20,170.92-30,263.40-7,026.78

Finding the Fourth Proportional to 20,170.92, 30,263.40 and 7,026.78

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Solution

The fourth proportional to 20,170.92, 30,263.40 and 7,026.78 is: 10,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.92 : 30,263.40 = 7,026.78 : x
  2. Step 2: Convert to fraction form
    20,170.92/30,263.40 = 7,026.78/x
  3. Step 3: Cross multiply
    20,170.92x = 30,263.40 × 7,026.78
  4. Step 4: Simplify right side
    20,170.92x = 212,654,253.85
  5. Step 5: Solve for x
    x = 212,654,253.85/20,170.92
  6. Step 6: Final answer
    x = 10,542.62

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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.