Home / 38,415.80-57,623.70-12,122.56

Finding the Fourth Proportional to 38,415.80, 57,623.70 and 12,122.56

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Solution

The fourth proportional to 38,415.80, 57,623.70 and 12,122.56 is: 18,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.80 : 57,623.70 = 12,122.56 : x
  2. Step 2: Convert to fraction form
    38,415.80/57,623.70 = 12,122.56/x
  3. Step 3: Cross multiply
    38,415.80x = 57,623.70 × 12,122.56
  4. Step 4: Simplify right side
    38,415.80x = 698,546,760.67
  5. Step 5: Solve for x
    x = 698,546,760.67/38,415.80
  6. Step 6: Final answer
    x = 18,183.84

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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.