Home / 27,007.29-40,519.05-12,786.61

Finding the Fourth Proportional to 27,007.29, 40,519.05 and 12,786.61

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Solution

The fourth proportional to 27,007.29, 40,519.05 and 12,786.61 is: 19,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,007.29 : 40,519.05 = 12,786.61 : x
  2. Step 2: Convert to fraction form
    27,007.29/40,519.05 = 12,786.61/x
  3. Step 3: Cross multiply
    27,007.29x = 40,519.05 × 12,786.61
  4. Step 4: Simplify right side
    27,007.29x = 518,101,234.63
  5. Step 5: Solve for x
    x = 518,101,234.63/27,007.29
  6. Step 6: Final answer
    x = 19,183.75

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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.