Home / 21,960.82-30,293.58-13,891.97

Finding the Fourth Proportional to 21,960.82, 30,293.58 and 13,891.97

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Solution

The fourth proportional to 21,960.82, 30,293.58 and 13,891.97 is: 19,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.82 : 30,293.58 = 13,891.97 : x
  2. Step 2: Convert to fraction form
    21,960.82/30,293.58 = 13,891.97/x
  3. Step 3: Cross multiply
    21,960.82x = 30,293.58 × 13,891.97
  4. Step 4: Simplify right side
    21,960.82x = 420,837,504.55
  5. Step 5: Solve for x
    x = 420,837,504.55/21,960.82
  6. Step 6: Final answer
    x = 19,163.11

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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.