Home / 38,122.61-57,183.91-10,420.61

Finding the Fourth Proportional to 38,122.61, 57,183.91 and 10,420.61

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Solution

The fourth proportional to 38,122.61, 57,183.91 and 10,420.61 is: 15,630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.61 : 57,183.91 = 10,420.61 : x
  2. Step 2: Convert to fraction form
    38,122.61/57,183.91 = 10,420.61/x
  3. Step 3: Cross multiply
    38,122.61x = 57,183.91 × 10,420.61
  4. Step 4: Simplify right side
    38,122.61x = 595,890,912.41
  5. Step 5: Solve for x
    x = 595,890,912.41/38,122.61
  6. Step 6: Final answer
    x = 15,630.91

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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.