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Finding the Fourth Proportional to 25,399.99, 38,099.99 and 12,253.69

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Solution

The fourth proportional to 25,399.99, 38,099.99 and 12,253.69 is: 18,380.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,399.99 : 38,099.99 = 12,253.69 : x
  2. Step 2: Convert to fraction form
    25,399.99/38,099.99 = 12,253.69/x
  3. Step 3: Cross multiply
    25,399.99x = 38,099.99 × 12,253.69
  4. Step 4: Simplify right side
    25,399.99x = 466,865,466.46
  5. Step 5: Solve for x
    x = 466,865,466.46/25,399.99
  6. Step 6: Final answer
    x = 18,380.54

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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.