Home / 27,839.70-41,763.60-9,115.20

Finding the Fourth Proportional to 27,839.70, 41,763.60 and 9,115.20

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Solution

The fourth proportional to 27,839.70, 41,763.60 and 9,115.20 is: 13,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,839.70 : 41,763.60 = 9,115.20 : x
  2. Step 2: Convert to fraction form
    27,839.70/41,763.60 = 9,115.20/x
  3. Step 3: Cross multiply
    27,839.70x = 41,763.60 × 9,115.20
  4. Step 4: Simplify right side
    27,839.70x = 380,683,566.72
  5. Step 5: Solve for x
    x = 380,683,566.72/27,839.70
  6. Step 6: Final answer
    x = 13,674.13

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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.