Home / 21,991.97-32,984.28-7,949.34

Finding the Fourth Proportional to 21,991.97, 32,984.28 and 7,949.34

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Solution

The fourth proportional to 21,991.97, 32,984.28 and 7,949.34 is: 11,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.97 : 32,984.28 = 7,949.34 : x
  2. Step 2: Convert to fraction form
    21,991.97/32,984.28 = 7,949.34/x
  3. Step 3: Cross multiply
    21,991.97x = 32,984.28 × 7,949.34
  4. Step 4: Simplify right side
    21,991.97x = 262,203,256.38
  5. Step 5: Solve for x
    x = 262,203,256.38/21,991.97
  6. Step 6: Final answer
    x = 11,922.68

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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.