Home / 39,149.30-54,025.76-21,243.85

Finding the Fourth Proportional to 39,149.30, 54,025.76 and 21,243.85

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Solution

The fourth proportional to 39,149.30, 54,025.76 and 21,243.85 is: 29,316.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,149.30 : 54,025.76 = 21,243.85 : x
  2. Step 2: Convert to fraction form
    39,149.30/54,025.76 = 21,243.85/x
  3. Step 3: Cross multiply
    39,149.30x = 54,025.76 × 21,243.85
  4. Step 4: Simplify right side
    39,149.30x = 1,147,715,141.58
  5. Step 5: Solve for x
    x = 1,147,715,141.58/39,149.30
  6. Step 6: Final answer
    x = 29,316.36

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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.