Home / 39,540.25-54,565.05-21,634.99

Finding the Fourth Proportional to 39,540.25, 54,565.05 and 21,634.99

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Solution

The fourth proportional to 39,540.25, 54,565.05 and 21,634.99 is: 29,856.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,540.25 : 54,565.05 = 21,634.99 : x
  2. Step 2: Convert to fraction form
    39,540.25/54,565.05 = 21,634.99/x
  3. Step 3: Cross multiply
    39,540.25x = 54,565.05 × 21,634.99
  4. Step 4: Simplify right side
    39,540.25x = 1,180,514,311.10
  5. Step 5: Solve for x
    x = 1,180,514,311.10/39,540.25
  6. Step 6: Final answer
    x = 29,856.02

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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.