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Finding the Fourth Proportional to 17,440.80, 26,122.80 and 15,136.80

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Solution

The fourth proportional to 17,440.80, 26,122.80 and 15,136.80 is: 22,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,440.80 : 26,122.80 = 15,136.80 : x
  2. Step 2: Convert to fraction form
    17,440.80/26,122.80 = 15,136.80/x
  3. Step 3: Cross multiply
    17,440.80x = 26,122.80 × 15,136.80
  4. Step 4: Simplify right side
    17,440.80x = 395,415,599.04
  5. Step 5: Solve for x
    x = 395,415,599.04/17,440.80
  6. Step 6: Final answer
    x = 22,671.87

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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.