Home / 27,986.06-41,986.38-12,400.04

Finding the Fourth Proportional to 27,986.06, 41,986.38 and 12,400.04

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Solution

The fourth proportional to 27,986.06, 41,986.38 and 12,400.04 is: 18,603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.06 : 41,986.38 = 12,400.04 : x
  2. Step 2: Convert to fraction form
    27,986.06/41,986.38 = 12,400.04/x
  3. Step 3: Cross multiply
    27,986.06x = 41,986.38 × 12,400.04
  4. Step 4: Simplify right side
    27,986.06x = 520,632,791.46
  5. Step 5: Solve for x
    x = 520,632,791.46/27,986.06
  6. Step 6: Final answer
    x = 18,603.29

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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.