Home / 20,930.88-31,546.83-18,044.04

Finding the Fourth Proportional to 20,930.88, 31,546.83 and 18,044.04

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Solution

The fourth proportional to 20,930.88, 31,546.83 and 18,044.04 is: 27,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,930.88 : 31,546.83 = 18,044.04 : x
  2. Step 2: Convert to fraction form
    20,930.88/31,546.83 = 18,044.04/x
  3. Step 3: Cross multiply
    20,930.88x = 31,546.83 × 18,044.04
  4. Step 4: Simplify right side
    20,930.88x = 569,232,262.39
  5. Step 5: Solve for x
    x = 569,232,262.39/20,930.88
  6. Step 6: Final answer
    x = 27,195.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.