Home / 20,549.67-30,805.83-7,399.05

Finding the Fourth Proportional to 20,549.67, 30,805.83 and 7,399.05

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Solution

The fourth proportional to 20,549.67, 30,805.83 and 7,399.05 is: 11,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.67 : 30,805.83 = 7,399.05 : x
  2. Step 2: Convert to fraction form
    20,549.67/30,805.83 = 7,399.05/x
  3. Step 3: Cross multiply
    20,549.67x = 30,805.83 × 7,399.05
  4. Step 4: Simplify right side
    20,549.67x = 227,933,876.46
  5. Step 5: Solve for x
    x = 227,933,876.46/20,549.67
  6. Step 6: Final answer
    x = 11,091.85

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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.