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Finding the Fourth Proportional to 19,839, 29,758.52 and 7,527

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Solution

The fourth proportional to 19,839, 29,758.52 and 7,527 is: 11,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839 : 29,758.52 = 7,527 : x
  2. Step 2: Convert to fraction form
    19,839/29,758.52 = 7,527/x
  3. Step 3: Cross multiply
    19,839x = 29,758.52 × 7,527
  4. Step 4: Simplify right side
    19,839x = 223,992,380.04
  5. Step 5: Solve for x
    x = 223,992,380.04/19,839
  6. Step 6: Final answer
    x = 11,290.51

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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.