Home / 27,996.47-38,634.79-15,249.61

Finding the Fourth Proportional to 27,996.47, 38,634.79 and 15,249.61

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Solution

The fourth proportional to 27,996.47, 38,634.79 and 15,249.61 is: 21,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,996.47 : 38,634.79 = 15,249.61 : x
  2. Step 2: Convert to fraction form
    27,996.47/38,634.79 = 15,249.61/x
  3. Step 3: Cross multiply
    27,996.47x = 38,634.79 × 15,249.61
  4. Step 4: Simplify right side
    27,996.47x = 589,165,479.93
  5. Step 5: Solve for x
    x = 589,165,479.93/27,996.47
  6. Step 6: Final answer
    x = 21,044.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.