Home / 19,831.42-27,365.97-10,878.72

Finding the Fourth Proportional to 19,831.42, 27,365.97 and 10,878.72

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Solution

The fourth proportional to 19,831.42, 27,365.97 and 10,878.72 is: 15,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.42 : 27,365.97 = 10,878.72 : x
  2. Step 2: Convert to fraction form
    19,831.42/27,365.97 = 10,878.72/x
  3. Step 3: Cross multiply
    19,831.42x = 27,365.97 × 10,878.72
  4. Step 4: Simplify right side
    19,831.42x = 297,706,725.16
  5. Step 5: Solve for x
    x = 297,706,725.16/19,831.42
  6. Step 6: Final answer
    x = 15,011.87

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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.