Home / 27,631.78-41,435.49-7,905.86

Finding the Fourth Proportional to 27,631.78, 41,435.49 and 7,905.86

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Solution

The fourth proportional to 27,631.78, 41,435.49 and 7,905.86 is: 11,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.78 : 41,435.49 = 7,905.86 : x
  2. Step 2: Convert to fraction form
    27,631.78/41,435.49 = 7,905.86/x
  3. Step 3: Cross multiply
    27,631.78x = 41,435.49 × 7,905.86
  4. Step 4: Simplify right side
    27,631.78x = 327,583,182.97
  5. Step 5: Solve for x
    x = 327,583,182.97/27,631.78
  6. Step 6: Final answer
    x = 11,855.31

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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.