Home / 22,716.78-31,322.34-15,550.17

Finding the Fourth Proportional to 22,716.78, 31,322.34 and 15,550.17

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Solution

The fourth proportional to 22,716.78, 31,322.34 and 15,550.17 is: 21,440.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,716.78 : 31,322.34 = 15,550.17 : x
  2. Step 2: Convert to fraction form
    22,716.78/31,322.34 = 15,550.17/x
  3. Step 3: Cross multiply
    22,716.78x = 31,322.34 × 15,550.17
  4. Step 4: Simplify right side
    22,716.78x = 487,067,711.80
  5. Step 5: Solve for x
    x = 487,067,711.80/22,716.78
  6. Step 6: Final answer
    x = 21,440.88

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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.