Home / 20,204.44-30,319.70-8,517.72

Finding the Fourth Proportional to 20,204.44, 30,319.70 and 8,517.72

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Solution

The fourth proportional to 20,204.44, 30,319.70 and 8,517.72 is: 12,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.44 : 30,319.70 = 8,517.72 : x
  2. Step 2: Convert to fraction form
    20,204.44/30,319.70 = 8,517.72/x
  3. Step 3: Cross multiply
    20,204.44x = 30,319.70 × 8,517.72
  4. Step 4: Simplify right side
    20,204.44x = 258,254,715.08
  5. Step 5: Solve for x
    x = 258,254,715.08/20,204.44
  6. Step 6: Final answer
    x = 12,782.08

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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.