Home / 27,891.72-41,842.68-9,172.80

Finding the Fourth Proportional to 27,891.72, 41,842.68 and 9,172.80

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Solution

The fourth proportional to 27,891.72, 41,842.68 and 9,172.80 is: 13,760.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891.72 : 41,842.68 = 9,172.80 : x
  2. Step 2: Convert to fraction form
    27,891.72/41,842.68 = 9,172.80/x
  3. Step 3: Cross multiply
    27,891.72x = 41,842.68 × 9,172.80
  4. Step 4: Simplify right side
    27,891.72x = 383,814,535.10
  5. Step 5: Solve for x
    x = 383,814,535.10/27,891.72
  6. Step 6: Final answer
    x = 13,760.88

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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.