Home / 13,822.98-20,734.38-3,434.64

Finding the Fourth Proportional to 13,822.98, 20,734.38 and 3,434.64

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Solution

The fourth proportional to 13,822.98, 20,734.38 and 3,434.64 is: 5,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.98 : 20,734.38 = 3,434.64 : x
  2. Step 2: Convert to fraction form
    13,822.98/20,734.38 = 3,434.64/x
  3. Step 3: Cross multiply
    13,822.98x = 20,734.38 × 3,434.64
  4. Step 4: Simplify right side
    13,822.98x = 71,215,130.92
  5. Step 5: Solve for x
    x = 71,215,130.92/13,822.98
  6. Step 6: Final answer
    x = 5,151.94

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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.