Home / 20,091.13-30,144.90-6,952.75

Finding the Fourth Proportional to 20,091.13, 30,144.90 and 6,952.75

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Solution

The fourth proportional to 20,091.13, 30,144.90 and 6,952.75 is: 10,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.13 : 30,144.90 = 6,952.75 : x
  2. Step 2: Convert to fraction form
    20,091.13/30,144.90 = 6,952.75/x
  3. Step 3: Cross multiply
    20,091.13x = 30,144.90 × 6,952.75
  4. Step 4: Simplify right side
    20,091.13x = 209,589,953.48
  5. Step 5: Solve for x
    x = 209,589,953.48/20,091.13
  6. Step 6: Final answer
    x = 10,431.96

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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.