Home / 38,651.94-57,977.46-21,786.21

Finding the Fourth Proportional to 38,651.94, 57,977.46 and 21,786.21

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Solution

The fourth proportional to 38,651.94, 57,977.46 and 21,786.21 is: 32,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,651.94 : 57,977.46 = 21,786.21 : x
  2. Step 2: Convert to fraction form
    38,651.94/57,977.46 = 21,786.21/x
  3. Step 3: Cross multiply
    38,651.94x = 57,977.46 × 21,786.21
  4. Step 4: Simplify right side
    38,651.94x = 1,263,109,118.83
  5. Step 5: Solve for x
    x = 1,263,109,118.83/38,651.94
  6. Step 6: Final answer
    x = 32,679.06

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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.