Home / 39,776.62-54,893.14-21,872.98

Finding the Fourth Proportional to 39,776.62, 54,893.14 and 21,872.98

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Solution

The fourth proportional to 39,776.62, 54,893.14 and 21,872.98 is: 30,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.62 : 54,893.14 = 21,872.98 : x
  2. Step 2: Convert to fraction form
    39,776.62/54,893.14 = 21,872.98/x
  3. Step 3: Cross multiply
    39,776.62x = 54,893.14 × 21,872.98
  4. Step 4: Simplify right side
    39,776.62x = 1,200,676,553.36
  5. Step 5: Solve for x
    x = 1,200,676,553.36/39,776.62
  6. Step 6: Final answer
    x = 30,185.48

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1.5x scale

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.