Home / 20,144.68-30,215.67-6,105.10

Finding the Fourth Proportional to 20,144.68, 30,215.67 and 6,105.10

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Solution

The fourth proportional to 20,144.68, 30,215.67 and 6,105.10 is: 9,157.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.68 : 30,215.67 = 6,105.10 : x
  2. Step 2: Convert to fraction form
    20,144.68/30,215.67 = 6,105.10/x
  3. Step 3: Cross multiply
    20,144.68x = 30,215.67 × 6,105.10
  4. Step 4: Simplify right side
    20,144.68x = 184,469,686.92
  5. Step 5: Solve for x
    x = 184,469,686.92/20,144.68
  6. Step 6: Final answer
    x = 9,157.24

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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.