Home / 27,787.13-41,668.09-11,984.69

Finding the Fourth Proportional to 27,787.13, 41,668.09 and 11,984.69

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Solution

The fourth proportional to 27,787.13, 41,668.09 and 11,984.69 is: 17,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.13 : 41,668.09 = 11,984.69 : x
  2. Step 2: Convert to fraction form
    27,787.13/41,668.09 = 11,984.69/x
  3. Step 3: Cross multiply
    27,787.13x = 41,668.09 × 11,984.69
  4. Step 4: Simplify right side
    27,787.13x = 499,379,215.75
  5. Step 5: Solve for x
    x = 499,379,215.75/27,787.13
  6. Step 6: Final answer
    x = 17,971.60

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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.