Home / 21,377.99-32,067.06-12,606.75

Finding the Fourth Proportional to 21,377.99, 32,067.06 and 12,606.75

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Solution

The fourth proportional to 21,377.99, 32,067.06 and 12,606.75 is: 18,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.99 : 32,067.06 = 12,606.75 : x
  2. Step 2: Convert to fraction form
    21,377.99/32,067.06 = 12,606.75/x
  3. Step 3: Cross multiply
    21,377.99x = 32,067.06 × 12,606.75
  4. Step 4: Simplify right side
    21,377.99x = 404,261,361.38
  5. Step 5: Solve for x
    x = 404,261,361.38/21,377.99
  6. Step 6: Final answer
    x = 18,910.16

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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.