Home / 20,245.27-30,360.60-8,559.40

Finding the Fourth Proportional to 20,245.27, 30,360.60 and 8,559.40

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Solution

The fourth proportional to 20,245.27, 30,360.60 and 8,559.40 is: 12,836.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.27 : 30,360.60 = 8,559.40 : x
  2. Step 2: Convert to fraction form
    20,245.27/30,360.60 = 8,559.40/x
  3. Step 3: Cross multiply
    20,245.27x = 30,360.60 × 8,559.40
  4. Step 4: Simplify right side
    20,245.27x = 259,868,519.64
  5. Step 5: Solve for x
    x = 259,868,519.64/20,245.27
  6. Step 6: Final answer
    x = 12,836.01

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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.