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Finding the Fourth Proportional to 18,414.86, 25,412.55 and 10,031.18

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Solution

The fourth proportional to 18,414.86, 25,412.55 and 10,031.18 is: 13,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.86 : 25,412.55 = 10,031.18 : x
  2. Step 2: Convert to fraction form
    18,414.86/25,412.55 = 10,031.18/x
  3. Step 3: Cross multiply
    18,414.86x = 25,412.55 × 10,031.18
  4. Step 4: Simplify right side
    18,414.86x = 254,917,863.31
  5. Step 5: Solve for x
    x = 254,917,863.31/18,414.86
  6. Step 6: Final answer
    x = 13,843.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.