Home / 21,992.44-30,348.75-11,920.66

Finding the Fourth Proportional to 21,992.44, 30,348.75 and 11,920.66

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Solution

The fourth proportional to 21,992.44, 30,348.75 and 11,920.66 is: 16,450.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.44 : 30,348.75 = 11,920.66 : x
  2. Step 2: Convert to fraction form
    21,992.44/30,348.75 = 11,920.66/x
  3. Step 3: Cross multiply
    21,992.44x = 30,348.75 × 11,920.66
  4. Step 4: Simplify right side
    21,992.44x = 361,777,157.52
  5. Step 5: Solve for x
    x = 361,777,157.52/21,992.44
  6. Step 6: Final answer
    x = 16,450.07

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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.