Home / 13,838.72-20,758.01-3,450.47

Finding the Fourth Proportional to 13,838.72, 20,758.01 and 3,450.47

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Solution

The fourth proportional to 13,838.72, 20,758.01 and 3,450.47 is: 5,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.72 : 20,758.01 = 3,450.47 : x
  2. Step 2: Convert to fraction form
    13,838.72/20,758.01 = 3,450.47/x
  3. Step 3: Cross multiply
    13,838.72x = 20,758.01 × 3,450.47
  4. Step 4: Simplify right side
    13,838.72x = 71,624,769.72
  5. Step 5: Solve for x
    x = 71,624,769.72/13,838.72
  6. Step 6: Final answer
    x = 5,175.68

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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.