Home / 27,911.92-41,811.31-12,897.69

Finding the Fourth Proportional to 27,911.92, 41,811.31 and 12,897.69

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Solution

The fourth proportional to 27,911.92, 41,811.31 and 12,897.69 is: 19,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.92 : 41,811.31 = 12,897.69 : x
  2. Step 2: Convert to fraction form
    27,911.92/41,811.31 = 12,897.69/x
  3. Step 3: Cross multiply
    27,911.92x = 41,811.31 × 12,897.69
  4. Step 4: Simplify right side
    27,911.92x = 539,269,314.87
  5. Step 5: Solve for x
    x = 539,269,314.87/27,911.92
  6. Step 6: Final answer
    x = 19,320.39

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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.