Home / 20,100.46-30,129.41-6,760.75

Finding the Fourth Proportional to 20,100.46, 30,129.41 and 6,760.75

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Solution

The fourth proportional to 20,100.46, 30,129.41 and 6,760.75 is: 10,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.46 : 30,129.41 = 6,760.75 : x
  2. Step 2: Convert to fraction form
    20,100.46/30,129.41 = 6,760.75/x
  3. Step 3: Cross multiply
    20,100.46x = 30,129.41 × 6,760.75
  4. Step 4: Simplify right side
    20,100.46x = 203,697,408.66
  5. Step 5: Solve for x
    x = 203,697,408.66/20,100.46
  6. Step 6: Final answer
    x = 10,133.97

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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.