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Finding the Fourth Proportional to 18,310.60, 25,712.60 and 18,310.60

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Solution

The fourth proportional to 18,310.60, 25,712.60 and 18,310.60 is: 25,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.60 : 25,712.60 = 18,310.60 : x
  2. Step 2: Convert to fraction form
    18,310.60/25,712.60 = 18,310.60/x
  3. Step 3: Cross multiply
    18,310.60x = 25,712.60 × 18,310.60
  4. Step 4: Simplify right side
    18,310.60x = 470,813,133.56
  5. Step 5: Solve for x
    x = 470,813,133.56/18,310.60
  6. Step 6: Final answer
    x = 25,712.60

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.