Home / 20,198.56-27,873.34-11,245.76

Finding the Fourth Proportional to 20,198.56, 27,873.34 and 11,245.76

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Solution

The fourth proportional to 20,198.56, 27,873.34 and 11,245.76 is: 15,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.56 : 27,873.34 = 11,245.76 : x
  2. Step 2: Convert to fraction form
    20,198.56/27,873.34 = 11,245.76/x
  3. Step 3: Cross multiply
    20,198.56x = 27,873.34 × 11,245.76
  4. Step 4: Simplify right side
    20,198.56x = 313,456,892.04
  5. Step 5: Solve for x
    x = 313,456,892.04/20,198.56
  6. Step 6: Final answer
    x = 15,518.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.