Home / 13,822.76-20,734.16-3,434.52

Finding the Fourth Proportional to 13,822.76, 20,734.16 and 3,434.52

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Solution

The fourth proportional to 13,822.76, 20,734.16 and 3,434.52 is: 5,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.76 : 20,734.16 = 3,434.52 : x
  2. Step 2: Convert to fraction form
    13,822.76/20,734.16 = 3,434.52/x
  3. Step 3: Cross multiply
    13,822.76x = 20,734.16 × 3,434.52
  4. Step 4: Simplify right side
    13,822.76x = 71,211,887.20
  5. Step 5: Solve for x
    x = 71,211,887.20/13,822.76
  6. Step 6: Final answer
    x = 5,151.78

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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.