Home / 13,429.31-20,143.94-4,664.30

Finding the Fourth Proportional to 13,429.31, 20,143.94 and 4,664.30

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Solution

The fourth proportional to 13,429.31, 20,143.94 and 4,664.30 is: 6,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.31 : 20,143.94 = 4,664.30 : x
  2. Step 2: Convert to fraction form
    13,429.31/20,143.94 = 4,664.30/x
  3. Step 3: Cross multiply
    13,429.31x = 20,143.94 × 4,664.30
  4. Step 4: Simplify right side
    13,429.31x = 93,957,278.62
  5. Step 5: Solve for x
    x = 93,957,278.62/13,429.31
  6. Step 6: Final answer
    x = 6,996.44

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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.