Home / 39,396.92-54,367.77-21,491.96

Finding the Fourth Proportional to 39,396.92, 54,367.77 and 21,491.96

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Solution

The fourth proportional to 39,396.92, 54,367.77 and 21,491.96 is: 29,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,396.92 : 54,367.77 = 21,491.96 : x
  2. Step 2: Convert to fraction form
    39,396.92/54,367.77 = 21,491.96/x
  3. Step 3: Cross multiply
    39,396.92x = 54,367.77 × 21,491.96
  4. Step 4: Simplify right side
    39,396.92x = 1,168,469,938.13
  5. Step 5: Solve for x
    x = 1,168,469,938.13/39,396.92
  6. Step 6: Final answer
    x = 29,658.92

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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.