Home / 27,620.57-41,408.35-12,838.79

Finding the Fourth Proportional to 27,620.57, 41,408.35 and 12,838.79

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Solution

The fourth proportional to 27,620.57, 41,408.35 and 12,838.79 is: 19,247.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.57 : 41,408.35 = 12,838.79 : x
  2. Step 2: Convert to fraction form
    27,620.57/41,408.35 = 12,838.79/x
  3. Step 3: Cross multiply
    27,620.57x = 41,408.35 × 12,838.79
  4. Step 4: Simplify right side
    27,620.57x = 531,633,109.90
  5. Step 5: Solve for x
    x = 531,633,109.90/27,620.57
  6. Step 6: Final answer
    x = 19,247.72

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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.