Home / 19,928.43-27,481.68-12,375.99

Finding the Fourth Proportional to 19,928.43, 27,481.68 and 12,375.99

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Solution

The fourth proportional to 19,928.43, 27,481.68 and 12,375.99 is: 17,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.43 : 27,481.68 = 12,375.99 : x
  2. Step 2: Convert to fraction form
    19,928.43/27,481.68 = 12,375.99/x
  3. Step 3: Cross multiply
    19,928.43x = 27,481.68 × 12,375.99
  4. Step 4: Simplify right side
    19,928.43x = 340,112,996.86
  5. Step 5: Solve for x
    x = 340,112,996.86/19,928.43
  6. Step 6: Final answer
    x = 17,066.72

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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.