Home / 25,857.27-38,788.13-7,137.30

Finding the Fourth Proportional to 25,857.27, 38,788.13 and 7,137.30

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Solution

The fourth proportional to 25,857.27, 38,788.13 and 7,137.30 is: 10,706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.27 : 38,788.13 = 7,137.30 : x
  2. Step 2: Convert to fraction form
    25,857.27/38,788.13 = 7,137.30/x
  3. Step 3: Cross multiply
    25,857.27x = 38,788.13 × 7,137.30
  4. Step 4: Simplify right side
    25,857.27x = 276,842,520.25
  5. Step 5: Solve for x
    x = 276,842,520.25/25,857.27
  6. Step 6: Final answer
    x = 10,706.56

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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.