Home / 19,940.53-29,908.48-5,148.29

Finding the Fourth Proportional to 19,940.53, 29,908.48 and 5,148.29

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Solution

The fourth proportional to 19,940.53, 29,908.48 and 5,148.29 is: 7,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.53 : 29,908.48 = 5,148.29 : x
  2. Step 2: Convert to fraction form
    19,940.53/29,908.48 = 5,148.29/x
  3. Step 3: Cross multiply
    19,940.53x = 29,908.48 × 5,148.29
  4. Step 4: Simplify right side
    19,940.53x = 153,977,375.74
  5. Step 5: Solve for x
    x = 153,977,375.74/19,940.53
  6. Step 6: Final answer
    x = 7,721.83

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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.