Home / 25,906.40-38,859.66-11,105.72

Finding the Fourth Proportional to 25,906.40, 38,859.66 and 11,105.72

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Solution

The fourth proportional to 25,906.40, 38,859.66 and 11,105.72 is: 16,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,906.40 : 38,859.66 = 11,105.72 : x
  2. Step 2: Convert to fraction form
    25,906.40/38,859.66 = 11,105.72/x
  3. Step 3: Cross multiply
    25,906.40x = 38,859.66 × 11,105.72
  4. Step 4: Simplify right side
    25,906.40x = 431,564,503.26
  5. Step 5: Solve for x
    x = 431,564,503.26/25,906.40
  6. Step 6: Final answer
    x = 16,658.61

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1.5x scale

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.