Home / 19,957.72-29,936.26-5,165.44

Finding the Fourth Proportional to 19,957.72, 29,936.26 and 5,165.44

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Solution

The fourth proportional to 19,957.72, 29,936.26 and 5,165.44 is: 7,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.72 : 29,936.26 = 5,165.44 : x
  2. Step 2: Convert to fraction form
    19,957.72/29,936.26 = 5,165.44/x
  3. Step 3: Cross multiply
    19,957.72x = 29,936.26 × 5,165.44
  4. Step 4: Simplify right side
    19,957.72x = 154,633,954.85
  5. Step 5: Solve for x
    x = 154,633,954.85/19,957.72
  6. Step 6: Final answer
    x = 7,748.08

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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.