Home / 21,922.07-32,891.39-13,163.09

Finding the Fourth Proportional to 21,922.07, 32,891.39 and 13,163.09

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Solution

The fourth proportional to 21,922.07, 32,891.39 and 13,163.09 is: 19,749.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.07 : 32,891.39 = 13,163.09 : x
  2. Step 2: Convert to fraction form
    21,922.07/32,891.39 = 13,163.09/x
  3. Step 3: Cross multiply
    21,922.07x = 32,891.39 × 13,163.09
  4. Step 4: Simplify right side
    21,922.07x = 432,952,326.80
  5. Step 5: Solve for x
    x = 432,952,326.80/21,922.07
  6. Step 6: Final answer
    x = 19,749.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.