Home / 19,579.85-27,021.51-11,081.96

Finding the Fourth Proportional to 19,579.85, 27,021.51 and 11,081.96

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Solution

The fourth proportional to 19,579.85, 27,021.51 and 11,081.96 is: 15,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.85 : 27,021.51 = 11,081.96 : x
  2. Step 2: Convert to fraction form
    19,579.85/27,021.51 = 11,081.96/x
  3. Step 3: Cross multiply
    19,579.85x = 27,021.51 × 11,081.96
  4. Step 4: Simplify right side
    19,579.85x = 299,451,292.96
  5. Step 5: Solve for x
    x = 299,451,292.96/19,579.85
  6. Step 6: Final answer
    x = 15,293.85

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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.