Home / 39,296.35-54,229.53-21,391.91

Finding the Fourth Proportional to 39,296.35, 54,229.53 and 21,391.91

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Solution

The fourth proportional to 39,296.35, 54,229.53 and 21,391.91 is: 29,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,296.35 : 54,229.53 = 21,391.91 : x
  2. Step 2: Convert to fraction form
    39,296.35/54,229.53 = 21,391.91/x
  3. Step 3: Cross multiply
    39,296.35x = 54,229.53 × 21,391.91
  4. Step 4: Simplify right side
    39,296.35x = 1,160,073,118.14
  5. Step 5: Solve for x
    x = 1,160,073,118.14/39,296.35
  6. Step 6: Final answer
    x = 29,521.15

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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.