Home / 27,724.78-38,262.48-15,791.96

Finding the Fourth Proportional to 27,724.78, 38,262.48 and 15,791.96

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Solution

The fourth proportional to 27,724.78, 38,262.48 and 15,791.96 is: 21,794.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.78 : 38,262.48 = 15,791.96 : x
  2. Step 2: Convert to fraction form
    27,724.78/38,262.48 = 15,791.96/x
  3. Step 3: Cross multiply
    27,724.78x = 38,262.48 × 15,791.96
  4. Step 4: Simplify right side
    27,724.78x = 604,239,590.10
  5. Step 5: Solve for x
    x = 604,239,590.10/27,724.78
  6. Step 6: Final answer
    x = 21,794.21

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1.5x scale

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.