Home / 19,821.04-29,747.92-9,963.12

Finding the Fourth Proportional to 19,821.04, 29,747.92 and 9,963.12

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Solution

The fourth proportional to 19,821.04, 29,747.92 and 9,963.12 is: 14,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.04 : 29,747.92 = 9,963.12 : x
  2. Step 2: Convert to fraction form
    19,821.04/29,747.92 = 9,963.12/x
  3. Step 3: Cross multiply
    19,821.04x = 29,747.92 × 9,963.12
  4. Step 4: Simplify right side
    19,821.04x = 296,382,096.71
  5. Step 5: Solve for x
    x = 296,382,096.71/19,821.04
  6. Step 6: Final answer
    x = 14,952.90

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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.