Home / 39,276.80-54,201.11-21,371.85

Finding the Fourth Proportional to 39,276.80, 54,201.11 and 21,371.85

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Solution

The fourth proportional to 39,276.80, 54,201.11 and 21,371.85 is: 29,492.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,276.80 : 54,201.11 = 21,371.85 : x
  2. Step 2: Convert to fraction form
    39,276.80/54,201.11 = 21,371.85/x
  3. Step 3: Cross multiply
    39,276.80x = 54,201.11 × 21,371.85
  4. Step 4: Simplify right side
    39,276.80x = 1,158,377,992.75
  5. Step 5: Solve for x
    x = 1,158,377,992.75/39,276.80
  6. Step 6: Final answer
    x = 29,492.68

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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.