Home / 13,481.50-20,222.30-4,121.48

Finding the Fourth Proportional to 13,481.50, 20,222.30 and 4,121.48

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Solution

The fourth proportional to 13,481.50, 20,222.30 and 4,121.48 is: 6,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.50 : 20,222.30 = 4,121.48 : x
  2. Step 2: Convert to fraction form
    13,481.50/20,222.30 = 4,121.48/x
  3. Step 3: Cross multiply
    13,481.50x = 20,222.30 × 4,121.48
  4. Step 4: Simplify right side
    13,481.50x = 83,345,805.00
  5. Step 5: Solve for x
    x = 83,345,805.00/13,481.50
  6. Step 6: Final answer
    x = 6,182.24

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1.5x scale

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.