Home / 39,676.86-54,753.98-21,772.08

Finding the Fourth Proportional to 39,676.86, 54,753.98 and 21,772.08

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Solution

The fourth proportional to 39,676.86, 54,753.98 and 21,772.08 is: 30,045.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,676.86 : 54,753.98 = 21,772.08 : x
  2. Step 2: Convert to fraction form
    39,676.86/54,753.98 = 21,772.08/x
  3. Step 3: Cross multiply
    39,676.86x = 54,753.98 × 21,772.08
  4. Step 4: Simplify right side
    39,676.86x = 1,192,108,032.88
  5. Step 5: Solve for x
    x = 1,192,108,032.88/39,676.86
  6. Step 6: Final answer
    x = 30,045.42

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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.