Home / 20,256.60-30,388.26-7,105.56

Finding the Fourth Proportional to 20,256.60, 30,388.26 and 7,105.56

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Solution

The fourth proportional to 20,256.60, 30,388.26 and 7,105.56 is: 10,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.60 : 30,388.26 = 7,105.56 : x
  2. Step 2: Convert to fraction form
    20,256.60/30,388.26 = 7,105.56/x
  3. Step 3: Cross multiply
    20,256.60x = 30,388.26 × 7,105.56
  4. Step 4: Simplify right side
    20,256.60x = 215,925,604.73
  5. Step 5: Solve for x
    x = 215,925,604.73/20,256.60
  6. Step 6: Final answer
    x = 10,659.52

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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.