Home / 19,629.08-27,087.55-11,131.98

Finding the Fourth Proportional to 19,629.08, 27,087.55 and 11,131.98

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Solution

The fourth proportional to 19,629.08, 27,087.55 and 11,131.98 is: 15,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.08 : 27,087.55 = 11,131.98 : x
  2. Step 2: Convert to fraction form
    19,629.08/27,087.55 = 11,131.98/x
  3. Step 3: Cross multiply
    19,629.08x = 27,087.55 × 11,131.98
  4. Step 4: Simplify right side
    19,629.08x = 301,538,064.85
  5. Step 5: Solve for x
    x = 301,538,064.85/19,629.08
  6. Step 6: Final answer
    x = 15,361.80

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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.