Home / 20,568.55-30,861.06-8,091.73

Finding the Fourth Proportional to 20,568.55, 30,861.06 and 8,091.73

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Solution

The fourth proportional to 20,568.55, 30,861.06 and 8,091.73 is: 12,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.55 : 30,861.06 = 8,091.73 : x
  2. Step 2: Convert to fraction form
    20,568.55/30,861.06 = 8,091.73/x
  3. Step 3: Cross multiply
    20,568.55x = 30,861.06 × 8,091.73
  4. Step 4: Simplify right side
    20,568.55x = 249,719,365.03
  5. Step 5: Solve for x
    x = 249,719,365.03/20,568.55
  6. Step 6: Final answer
    x = 12,140.83

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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.