Home / 27,987.92-41,982.16-13,203.80

Finding the Fourth Proportional to 27,987.92, 41,982.16 and 13,203.80

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Solution

The fourth proportional to 27,987.92, 41,982.16 and 13,203.80 is: 19,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.92 : 41,982.16 = 13,203.80 : x
  2. Step 2: Convert to fraction form
    27,987.92/41,982.16 = 13,203.80/x
  3. Step 3: Cross multiply
    27,987.92x = 41,982.16 × 13,203.80
  4. Step 4: Simplify right side
    27,987.92x = 554,324,044.21
  5. Step 5: Solve for x
    x = 554,324,044.21/27,987.92
  6. Step 6: Final answer
    x = 19,805.83

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1.5x scale

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.