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Finding the Fourth Proportional to 25,993.89, 38,999.88 and 8,463.60

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Solution

The fourth proportional to 25,993.89, 38,999.88 and 8,463.60 is: 12,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,993.89 : 38,999.88 = 8,463.60 : x
  2. Step 2: Convert to fraction form
    25,993.89/38,999.88 = 8,463.60/x
  3. Step 3: Cross multiply
    25,993.89x = 38,999.88 × 8,463.60
  4. Step 4: Simplify right side
    25,993.89x = 330,079,384.37
  5. Step 5: Solve for x
    x = 330,079,384.37/25,993.89
  6. Step 6: Final answer
    x = 12,698.35

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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.