Home / 29,108.26-40,137.60-19,660.42

Finding the Fourth Proportional to 29,108.26, 40,137.60 and 19,660.42

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Solution

The fourth proportional to 29,108.26, 40,137.60 and 19,660.42 is: 27,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,108.26 : 40,137.60 = 19,660.42 : x
  2. Step 2: Convert to fraction form
    29,108.26/40,137.60 = 19,660.42/x
  3. Step 3: Cross multiply
    29,108.26x = 40,137.60 × 19,660.42
  4. Step 4: Simplify right side
    29,108.26x = 789,122,073.79
  5. Step 5: Solve for x
    x = 789,122,073.79/29,108.26
  6. Step 6: Final answer
    x = 27,109.90

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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.