Home / 37,121.88-55,670.94-12,155.16

Finding the Fourth Proportional to 37,121.88, 55,670.94 and 12,155.16

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Solution

The fourth proportional to 37,121.88, 55,670.94 and 12,155.16 is: 18,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.88 : 55,670.94 = 12,155.16 : x
  2. Step 2: Convert to fraction form
    37,121.88/55,670.94 = 12,155.16/x
  3. Step 3: Cross multiply
    37,121.88x = 55,670.94 × 12,155.16
  4. Step 4: Simplify right side
    37,121.88x = 676,689,183.05
  5. Step 5: Solve for x
    x = 676,689,183.05/37,121.88
  6. Step 6: Final answer
    x = 18,228.85

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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.