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Finding the Fourth Proportional to 29,410.60, 40,571.06 and 18,636.44

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Solution

The fourth proportional to 29,410.60, 40,571.06 and 18,636.44 is: 25,708.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,410.60 : 40,571.06 = 18,636.44 : x
  2. Step 2: Convert to fraction form
    29,410.60/40,571.06 = 18,636.44/x
  3. Step 3: Cross multiply
    29,410.60x = 40,571.06 × 18,636.44
  4. Step 4: Simplify right side
    29,410.60x = 756,100,125.43
  5. Step 5: Solve for x
    x = 756,100,125.43/29,410.60
  6. Step 6: Final answer
    x = 25,708.42

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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.