Home / 20,544.39-28,351.26-11,112.96

Finding the Fourth Proportional to 20,544.39, 28,351.26 and 11,112.96

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Solution

The fourth proportional to 20,544.39, 28,351.26 and 11,112.96 is: 15,335.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.39 : 28,351.26 = 11,112.96 : x
  2. Step 2: Convert to fraction form
    20,544.39/28,351.26 = 11,112.96/x
  3. Step 3: Cross multiply
    20,544.39x = 28,351.26 × 11,112.96
  4. Step 4: Simplify right side
    20,544.39x = 315,066,353.69
  5. Step 5: Solve for x
    x = 315,066,353.69/20,544.39
  6. Step 6: Final answer
    x = 15,335.88

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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.