Home / 21,994.23-30,351.71-11,922.49

Finding the Fourth Proportional to 21,994.23, 30,351.71 and 11,922.49

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Solution

The fourth proportional to 21,994.23, 30,351.71 and 11,922.49 is: 16,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,994.23 : 30,351.71 = 11,922.49 : x
  2. Step 2: Convert to fraction form
    21,994.23/30,351.71 = 11,922.49/x
  3. Step 3: Cross multiply
    21,994.23x = 30,351.71 × 11,922.49
  4. Step 4: Simplify right side
    21,994.23x = 361,868,026.70
  5. Step 5: Solve for x
    x = 361,868,026.70/21,994.23
  6. Step 6: Final answer
    x = 16,452.86

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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.