Home / 38,179.73-52,686.21-21,183.78

Finding the Fourth Proportional to 38,179.73, 52,686.21 and 21,183.78

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Solution

The fourth proportional to 38,179.73, 52,686.21 and 21,183.78 is: 29,232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179.73 : 52,686.21 = 21,183.78 : x
  2. Step 2: Convert to fraction form
    38,179.73/52,686.21 = 21,183.78/x
  3. Step 3: Cross multiply
    38,179.73x = 52,686.21 × 21,183.78
  4. Step 4: Simplify right side
    38,179.73x = 1,116,093,081.67
  5. Step 5: Solve for x
    x = 1,116,093,081.67/38,179.73
  6. Step 6: Final answer
    x = 29,232.61

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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.