Home / 19,831.12-27,366.72-11,447.44

Finding the Fourth Proportional to 19,831.12, 27,366.72 and 11,447.44

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Solution

The fourth proportional to 19,831.12, 27,366.72 and 11,447.44 is: 15,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.12 : 27,366.72 = 11,447.44 : x
  2. Step 2: Convert to fraction form
    19,831.12/27,366.72 = 11,447.44/x
  3. Step 3: Cross multiply
    19,831.12x = 27,366.72 × 11,447.44
  4. Step 4: Simplify right side
    19,831.12x = 313,278,885.20
  5. Step 5: Solve for x
    x = 313,278,885.20/19,831.12
  6. Step 6: Final answer
    x = 15,797.34

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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.