Home / 38,620.26-57,935.79-12,316.05

Finding the Fourth Proportional to 38,620.26, 57,935.79 and 12,316.05

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Solution

The fourth proportional to 38,620.26, 57,935.79 and 12,316.05 is: 18,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.26 : 57,935.79 = 12,316.05 : x
  2. Step 2: Convert to fraction form
    38,620.26/57,935.79 = 12,316.05/x
  3. Step 3: Cross multiply
    38,620.26x = 57,935.79 × 12,316.05
  4. Step 4: Simplify right side
    38,620.26x = 713,540,086.43
  5. Step 5: Solve for x
    x = 713,540,086.43/38,620.26
  6. Step 6: Final answer
    x = 18,475.80

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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.