Home / 37,121.10-55,687.05-12,162.30

Finding the Fourth Proportional to 37,121.10, 55,687.05 and 12,162.30

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Solution

The fourth proportional to 37,121.10, 55,687.05 and 12,162.30 is: 18,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.10 : 55,687.05 = 12,162.30 : x
  2. Step 2: Convert to fraction form
    37,121.10/55,687.05 = 12,162.30/x
  3. Step 3: Cross multiply
    37,121.10x = 55,687.05 × 12,162.30
  4. Step 4: Simplify right side
    37,121.10x = 677,282,608.22
  5. Step 5: Solve for x
    x = 677,282,608.22/37,121.10
  6. Step 6: Final answer
    x = 18,245.22

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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.