Home / 14,481.72-21,722.20-4,621.60

Finding the Fourth Proportional to 14,481.72, 21,722.20 and 4,621.60

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Solution

The fourth proportional to 14,481.72, 21,722.20 and 4,621.60 is: 6,932.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.72 : 21,722.20 = 4,621.60 : x
  2. Step 2: Convert to fraction form
    14,481.72/21,722.20 = 4,621.60/x
  3. Step 3: Cross multiply
    14,481.72x = 21,722.20 × 4,621.60
  4. Step 4: Simplify right side
    14,481.72x = 100,391,319.52
  5. Step 5: Solve for x
    x = 100,391,319.52/14,481.72
  6. Step 6: Final answer
    x = 6,932.28

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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.