Home / 21,629.82-29,848.74-12,198.38

Finding the Fourth Proportional to 21,629.82, 29,848.74 and 12,198.38

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Solution

The fourth proportional to 21,629.82, 29,848.74 and 12,198.38 is: 16,833.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.82 : 29,848.74 = 12,198.38 : x
  2. Step 2: Convert to fraction form
    21,629.82/29,848.74 = 12,198.38/x
  3. Step 3: Cross multiply
    21,629.82x = 29,848.74 × 12,198.38
  4. Step 4: Simplify right side
    21,629.82x = 364,106,273.04
  5. Step 5: Solve for x
    x = 364,106,273.04/21,629.82
  6. Step 6: Final answer
    x = 16,833.53

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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.