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Finding the Fourth Proportional to 25,486.37, 38,229.57 and 9,903.99

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Solution

The fourth proportional to 25,486.37, 38,229.57 and 9,903.99 is: 14,855.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,486.37 : 38,229.57 = 9,903.99 : x
  2. Step 2: Convert to fraction form
    25,486.37/38,229.57 = 9,903.99/x
  3. Step 3: Cross multiply
    25,486.37x = 38,229.57 × 9,903.99
  4. Step 4: Simplify right side
    25,486.37x = 378,625,278.98
  5. Step 5: Solve for x
    x = 378,625,278.98/25,486.37
  6. Step 6: Final answer
    x = 14,855.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.