Home / 29,455.48-40,660.41-20,029.78

Finding the Fourth Proportional to 29,455.48, 40,660.41 and 20,029.78

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Solution

The fourth proportional to 29,455.48, 40,660.41 and 20,029.78 is: 27,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.48 : 40,660.41 = 20,029.78 : x
  2. Step 2: Convert to fraction form
    29,455.48/40,660.41 = 20,029.78/x
  3. Step 3: Cross multiply
    29,455.48x = 40,660.41 × 20,029.78
  4. Step 4: Simplify right side
    29,455.48x = 814,419,067.01
  5. Step 5: Solve for x
    x = 814,419,067.01/29,455.48
  6. Step 6: Final answer
    x = 27,649.15

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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.