Home / 25,956.25-38,939.24-12,105.25

Finding the Fourth Proportional to 25,956.25, 38,939.24 and 12,105.25

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Solution

The fourth proportional to 25,956.25, 38,939.24 and 12,105.25 is: 18,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,956.25 : 38,939.24 = 12,105.25 : x
  2. Step 2: Convert to fraction form
    25,956.25/38,939.24 = 12,105.25/x
  3. Step 3: Cross multiply
    25,956.25x = 38,939.24 × 12,105.25
  4. Step 4: Simplify right side
    25,956.25x = 471,369,235.01
  5. Step 5: Solve for x
    x = 471,369,235.01/25,956.25
  6. Step 6: Final answer
    x = 18,160.14

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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.