Home / 38,158.06-52,660.78-21,163.86

Finding the Fourth Proportional to 38,158.06, 52,660.78 and 21,163.86

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Solution

The fourth proportional to 38,158.06, 52,660.78 and 21,163.86 is: 29,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,158.06 : 52,660.78 = 21,163.86 : x
  2. Step 2: Convert to fraction form
    38,158.06/52,660.78 = 21,163.86/x
  3. Step 3: Cross multiply
    38,158.06x = 52,660.78 × 21,163.86
  4. Step 4: Simplify right side
    38,158.06x = 1,114,505,375.41
  5. Step 5: Solve for x
    x = 1,114,505,375.41/38,158.06
  6. Step 6: Final answer
    x = 29,207.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.