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Finding the Fourth Proportional to 26,768.40, 40,136.60 and 16,387.60

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Solution

The fourth proportional to 26,768.40, 40,136.60 and 16,387.60 is: 24,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,768.40 : 40,136.60 = 16,387.60 : x
  2. Step 2: Convert to fraction form
    26,768.40/40,136.60 = 16,387.60/x
  3. Step 3: Cross multiply
    26,768.40x = 40,136.60 × 16,387.60
  4. Step 4: Simplify right side
    26,768.40x = 657,742,546.16
  5. Step 5: Solve for x
    x = 657,742,546.16/26,768.40
  6. Step 6: Final answer
    x = 24,571.60

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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.