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Finding the Fourth Proportional to 22,287, 30,756.06 and 12,351

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Solution

The fourth proportional to 22,287, 30,756.06 and 12,351 is: 17,044.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,287 : 30,756.06 = 12,351 : x
  2. Step 2: Convert to fraction form
    22,287/30,756.06 = 12,351/x
  3. Step 3: Cross multiply
    22,287x = 30,756.06 × 12,351
  4. Step 4: Simplify right side
    22,287x = 379,868,097.06
  5. Step 5: Solve for x
    x = 379,868,097.06/22,287
  6. Step 6: Final answer
    x = 17,044.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.