Home / 39,676.59-54,757.16-21,775.05

Finding the Fourth Proportional to 39,676.59, 54,757.16 and 21,775.05

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Solution

The fourth proportional to 39,676.59, 54,757.16 and 21,775.05 is: 30,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,676.59 : 54,757.16 = 21,775.05 : x
  2. Step 2: Convert to fraction form
    39,676.59/54,757.16 = 21,775.05/x
  3. Step 3: Cross multiply
    39,676.59x = 54,757.16 × 21,775.05
  4. Step 4: Simplify right side
    39,676.59x = 1,192,339,787.98
  5. Step 5: Solve for x
    x = 1,192,339,787.98/39,676.59
  6. Step 6: Final answer
    x = 30,051.47

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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.