Home / 39,776.30-54,891.44-21,872.43

Finding the Fourth Proportional to 39,776.30, 54,891.44 and 21,872.43

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Solution

The fourth proportional to 39,776.30, 54,891.44 and 21,872.43 is: 30,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.30 : 54,891.44 = 21,872.43 : x
  2. Step 2: Convert to fraction form
    39,776.30/54,891.44 = 21,872.43/x
  3. Step 3: Cross multiply
    39,776.30x = 54,891.44 × 21,872.43
  4. Step 4: Simplify right side
    39,776.30x = 1,200,609,069.64
  5. Step 5: Solve for x
    x = 1,200,609,069.64/39,776.30
  6. Step 6: Final answer
    x = 30,184.03

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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.