Home / 13,650.29-20,475.45-3,789.58

Finding the Fourth Proportional to 13,650.29, 20,475.45 and 3,789.58

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Solution

The fourth proportional to 13,650.29, 20,475.45 and 3,789.58 is: 5,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.29 : 20,475.45 = 3,789.58 : x
  2. Step 2: Convert to fraction form
    13,650.29/20,475.45 = 3,789.58/x
  3. Step 3: Cross multiply
    13,650.29x = 20,475.45 × 3,789.58
  4. Step 4: Simplify right side
    13,650.29x = 77,593,355.81
  5. Step 5: Solve for x
    x = 77,593,355.81/13,650.29
  6. Step 6: Final answer
    x = 5,684.37

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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.