Home / 20,236.56-30,350.88-5,445.60

Finding the Fourth Proportional to 20,236.56, 30,350.88 and 5,445.60

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Solution

The fourth proportional to 20,236.56, 30,350.88 and 5,445.60 is: 8,167.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.56 : 30,350.88 = 5,445.60 : x
  2. Step 2: Convert to fraction form
    20,236.56/30,350.88 = 5,445.60/x
  3. Step 3: Cross multiply
    20,236.56x = 30,350.88 × 5,445.60
  4. Step 4: Simplify right side
    20,236.56x = 165,278,752.13
  5. Step 5: Solve for x
    x = 165,278,752.13/20,236.56
  6. Step 6: Final answer
    x = 8,167.33

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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.