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Finding the Fourth Proportional to 25,409.34, 35,067.60 and 14,079.78

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Solution

The fourth proportional to 25,409.34, 35,067.60 and 14,079.78 is: 19,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,409.34 : 35,067.60 = 14,079.78 : x
  2. Step 2: Convert to fraction form
    25,409.34/35,067.60 = 14,079.78/x
  3. Step 3: Cross multiply
    25,409.34x = 35,067.60 × 14,079.78
  4. Step 4: Simplify right side
    25,409.34x = 493,744,093.13
  5. Step 5: Solve for x
    x = 493,744,093.13/25,409.34
  6. Step 6: Final answer
    x = 19,431.60

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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.