Home / 20,086.40-30,120.96-6,236.48

Finding the Fourth Proportional to 20,086.40, 30,120.96 and 6,236.48

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Solution

The fourth proportional to 20,086.40, 30,120.96 and 6,236.48 is: 9,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.40 : 30,120.96 = 6,236.48 : x
  2. Step 2: Convert to fraction form
    20,086.40/30,120.96 = 6,236.48/x
  3. Step 3: Cross multiply
    20,086.40x = 30,120.96 × 6,236.48
  4. Step 4: Simplify right side
    20,086.40x = 187,848,764.62
  5. Step 5: Solve for x
    x = 187,848,764.62/20,086.40
  6. Step 6: Final answer
    x = 9,352.04

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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.