Home / 25,854.19-38,786.85-8,325.38

Finding the Fourth Proportional to 25,854.19, 38,786.85 and 8,325.38

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Solution

The fourth proportional to 25,854.19, 38,786.85 and 8,325.38 is: 12,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,854.19 : 38,786.85 = 8,325.38 : x
  2. Step 2: Convert to fraction form
    25,854.19/38,786.85 = 8,325.38/x
  3. Step 3: Cross multiply
    25,854.19x = 38,786.85 × 8,325.38
  4. Step 4: Simplify right side
    25,854.19x = 322,915,362.22
  5. Step 5: Solve for x
    x = 322,915,362.22/25,854.19
  6. Step 6: Final answer
    x = 12,489.87

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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.