Home / 20,738.76-31,101.77-5,943.71

Finding the Fourth Proportional to 20,738.76, 31,101.77 and 5,943.71

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Solution

The fourth proportional to 20,738.76, 31,101.77 and 5,943.71 is: 8,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.76 : 31,101.77 = 5,943.71 : x
  2. Step 2: Convert to fraction form
    20,738.76/31,101.77 = 5,943.71/x
  3. Step 3: Cross multiply
    20,738.76x = 31,101.77 × 5,943.71
  4. Step 4: Simplify right side
    20,738.76x = 184,859,716.14
  5. Step 5: Solve for x
    x = 184,859,716.14/20,738.76
  6. Step 6: Final answer
    x = 8,913.73

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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.