Home / 39,680.44-54,760.59-21,776.09

Finding the Fourth Proportional to 39,680.44, 54,760.59 and 21,776.09

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Solution

The fourth proportional to 39,680.44, 54,760.59 and 21,776.09 is: 30,051.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.44 : 54,760.59 = 21,776.09 : x
  2. Step 2: Convert to fraction form
    39,680.44/54,760.59 = 21,776.09/x
  3. Step 3: Cross multiply
    39,680.44x = 54,760.59 × 21,776.09
  4. Step 4: Simplify right side
    39,680.44x = 1,192,471,153.61
  5. Step 5: Solve for x
    x = 1,192,471,153.61/39,680.44
  6. Step 6: Final answer
    x = 30,051.86

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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.