Home / 19,963.62-29,943.09-5,171.40

Finding the Fourth Proportional to 19,963.62, 29,943.09 and 5,171.40

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Solution

The fourth proportional to 19,963.62, 29,943.09 and 5,171.40 is: 7,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,963.62 : 29,943.09 = 5,171.40 : x
  2. Step 2: Convert to fraction form
    19,963.62/29,943.09 = 5,171.40/x
  3. Step 3: Cross multiply
    19,963.62x = 29,943.09 × 5,171.40
  4. Step 4: Simplify right side
    19,963.62x = 154,847,695.63
  5. Step 5: Solve for x
    x = 154,847,695.63/19,963.62
  6. Step 6: Final answer
    x = 7,756.49

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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.