Home / 25,778.43-38,843.24-21,200.99

Finding the Fourth Proportional to 25,778.43, 38,843.24 and 21,200.99

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Solution

The fourth proportional to 25,778.43, 38,843.24 and 21,200.99 is: 31,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,778.43 : 38,843.24 = 21,200.99 : x
  2. Step 2: Convert to fraction form
    25,778.43/38,843.24 = 21,200.99/x
  3. Step 3: Cross multiply
    25,778.43x = 38,843.24 × 21,200.99
  4. Step 4: Simplify right side
    25,778.43x = 823,514,842.59
  5. Step 5: Solve for x
    x = 823,514,842.59/25,778.43
  6. Step 6: Final answer
    x = 31,945.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.