Home / 39,757.33-54,868.62-21,855.83

Finding the Fourth Proportional to 39,757.33, 54,868.62 and 21,855.83

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Solution

The fourth proportional to 39,757.33, 54,868.62 and 21,855.83 is: 30,162.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,757.33 : 54,868.62 = 21,855.83 : x
  2. Step 2: Convert to fraction form
    39,757.33/54,868.62 = 21,855.83/x
  3. Step 3: Cross multiply
    39,757.33x = 54,868.62 × 21,855.83
  4. Step 4: Simplify right side
    39,757.33x = 1,199,199,038.67
  5. Step 5: Solve for x
    x = 1,199,199,038.67/39,757.33
  6. Step 6: Final answer
    x = 30,162.97

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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.