Home / 20,481.39-30,733.83-8,634.33

Finding the Fourth Proportional to 20,481.39, 30,733.83 and 8,634.33

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Solution

The fourth proportional to 20,481.39, 30,733.83 and 8,634.33 is: 12,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.39 : 30,733.83 = 8,634.33 : x
  2. Step 2: Convert to fraction form
    20,481.39/30,733.83 = 8,634.33/x
  3. Step 3: Cross multiply
    20,481.39x = 30,733.83 × 8,634.33
  4. Step 4: Simplify right side
    20,481.39x = 265,366,030.38
  5. Step 5: Solve for x
    x = 265,366,030.38/20,481.39
  6. Step 6: Final answer
    x = 12,956.45

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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.