Home / 20,081.39-30,110.94-8,998.70

Finding the Fourth Proportional to 20,081.39, 30,110.94 and 8,998.70

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Solution

The fourth proportional to 20,081.39, 30,110.94 and 8,998.70 is: 13,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.39 : 30,110.94 = 8,998.70 : x
  2. Step 2: Convert to fraction form
    20,081.39/30,110.94 = 8,998.70/x
  3. Step 3: Cross multiply
    20,081.39x = 30,110.94 × 8,998.70
  4. Step 4: Simplify right side
    20,081.39x = 270,959,165.22
  5. Step 5: Solve for x
    x = 270,959,165.22/20,081.39
  6. Step 6: Final answer
    x = 13,493.05

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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.