Home / 19,831.91-27,369.78-10,881.17

Finding the Fourth Proportional to 19,831.91, 27,369.78 and 10,881.17

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Solution

The fourth proportional to 19,831.91, 27,369.78 and 10,881.17 is: 15,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.91 : 27,369.78 = 10,881.17 : x
  2. Step 2: Convert to fraction form
    19,831.91/27,369.78 = 10,881.17/x
  3. Step 3: Cross multiply
    19,831.91x = 27,369.78 × 10,881.17
  4. Step 4: Simplify right side
    19,831.91x = 297,815,229.04
  5. Step 5: Solve for x
    x = 297,815,229.04/19,831.91
  6. Step 6: Final answer
    x = 15,016.97

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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.