Home / 20,838.54-31,221.32-17,350.96

Finding the Fourth Proportional to 20,838.54, 31,221.32 and 17,350.96

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Solution

The fourth proportional to 20,838.54, 31,221.32 and 17,350.96 is: 25,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.54 : 31,221.32 = 17,350.96 : x
  2. Step 2: Convert to fraction form
    20,838.54/31,221.32 = 17,350.96/x
  3. Step 3: Cross multiply
    20,838.54x = 31,221.32 × 17,350.96
  4. Step 4: Simplify right side
    20,838.54x = 541,719,874.47
  5. Step 5: Solve for x
    x = 541,719,874.47/20,838.54
  6. Step 6: Final answer
    x = 25,996.06

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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.