Home / 22,040.20-30,415.36-11,968.55

Finding the Fourth Proportional to 22,040.20, 30,415.36 and 11,968.55

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Solution

The fourth proportional to 22,040.20, 30,415.36 and 11,968.55 is: 16,516.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040.20 : 30,415.36 = 11,968.55 : x
  2. Step 2: Convert to fraction form
    22,040.20/30,415.36 = 11,968.55/x
  3. Step 3: Cross multiply
    22,040.20x = 30,415.36 × 11,968.55
  4. Step 4: Simplify right side
    22,040.20x = 364,027,756.93
  5. Step 5: Solve for x
    x = 364,027,756.93/22,040.20
  6. Step 6: Final answer
    x = 16,516.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.