Home / 18,728.08-28,096.20-5,401

Finding the Fourth Proportional to 18,728.08, 28,096.20 and 5,401

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Solution

The fourth proportional to 18,728.08, 28,096.20 and 5,401 is: 8,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.08 : 28,096.20 = 5,401 : x
  2. Step 2: Convert to fraction form
    18,728.08/28,096.20 = 5,401/x
  3. Step 3: Cross multiply
    18,728.08x = 28,096.20 × 5,401
  4. Step 4: Simplify right side
    18,728.08x = 151,747,576.20
  5. Step 5: Solve for x
    x = 151,747,576.20/18,728.08
  6. Step 6: Final answer
    x = 8,102.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.