Home / 19,828.80-27,361.44-11,869.92

Finding the Fourth Proportional to 19,828.80, 27,361.44 and 11,869.92

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Solution

The fourth proportional to 19,828.80, 27,361.44 and 11,869.92 is: 16,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.80 : 27,361.44 = 11,869.92 : x
  2. Step 2: Convert to fraction form
    19,828.80/27,361.44 = 11,869.92/x
  3. Step 3: Cross multiply
    19,828.80x = 27,361.44 × 11,869.92
  4. Step 4: Simplify right side
    19,828.80x = 324,778,103.88
  5. Step 5: Solve for x
    x = 324,778,103.88/19,828.80
  6. Step 6: Final answer
    x = 16,379.11

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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.