Home / 27,992.25-41,988.71-11,979.62

Finding the Fourth Proportional to 27,992.25, 41,988.71 and 11,979.62

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Solution

The fourth proportional to 27,992.25, 41,988.71 and 11,979.62 is: 17,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.25 : 41,988.71 = 11,979.62 : x
  2. Step 2: Convert to fraction form
    27,992.25/41,988.71 = 11,979.62/x
  3. Step 3: Cross multiply
    27,992.25x = 41,988.71 × 11,979.62
  4. Step 4: Simplify right side
    27,992.25x = 503,008,790.09
  5. Step 5: Solve for x
    x = 503,008,790.09/27,992.25
  6. Step 6: Final answer
    x = 17,969.57

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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.