Home / 20,104.16-30,119.88-8,396.96

Finding the Fourth Proportional to 20,104.16, 30,119.88 and 8,396.96

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Solution

The fourth proportional to 20,104.16, 30,119.88 and 8,396.96 is: 12,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.16 : 30,119.88 = 8,396.96 : x
  2. Step 2: Convert to fraction form
    20,104.16/30,119.88 = 8,396.96/x
  3. Step 3: Cross multiply
    20,104.16x = 30,119.88 × 8,396.96
  4. Step 4: Simplify right side
    20,104.16x = 252,915,427.56
  5. Step 5: Solve for x
    x = 252,915,427.56/20,104.16
  6. Step 6: Final answer
    x = 12,580.25

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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.