Home / 19,628.82-27,087.19-11,131.72

Finding the Fourth Proportional to 19,628.82, 27,087.19 and 11,131.72

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Solution

The fourth proportional to 19,628.82, 27,087.19 and 11,131.72 is: 15,361.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.82 : 27,087.19 = 11,131.72 : x
  2. Step 2: Convert to fraction form
    19,628.82/27,087.19 = 11,131.72/x
  3. Step 3: Cross multiply
    19,628.82x = 27,087.19 × 11,131.72
  4. Step 4: Simplify right side
    19,628.82x = 301,527,014.67
  5. Step 5: Solve for x
    x = 301,527,014.67/19,628.82
  6. Step 6: Final answer
    x = 15,361.44

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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.