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Finding the Fourth Proportional to 29,245.44, 40,339.44 and 18,618.24

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Solution

The fourth proportional to 29,245.44, 40,339.44 and 18,618.24 is: 25,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,245.44 : 40,339.44 = 18,618.24 : x
  2. Step 2: Convert to fraction form
    29,245.44/40,339.44 = 18,618.24/x
  3. Step 3: Cross multiply
    29,245.44x = 40,339.44 × 18,618.24
  4. Step 4: Simplify right side
    29,245.44x = 751,049,375.39
  5. Step 5: Solve for x
    x = 751,049,375.39/29,245.44
  6. Step 6: Final answer
    x = 25,680.91

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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.