Home / 21,193.88-31,799.80-10,658.36

Finding the Fourth Proportional to 21,193.88, 31,799.80 and 10,658.36

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Solution

The fourth proportional to 21,193.88, 31,799.80 and 10,658.36 is: 15,992.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.88 : 31,799.80 = 10,658.36 : x
  2. Step 2: Convert to fraction form
    21,193.88/31,799.80 = 10,658.36/x
  3. Step 3: Cross multiply
    21,193.88x = 31,799.80 × 10,658.36
  4. Step 4: Simplify right side
    21,193.88x = 338,933,716.33
  5. Step 5: Solve for x
    x = 338,933,716.33/21,193.88
  6. Step 6: Final answer
    x = 15,992.06

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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.