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Finding the Fourth Proportional to 22,006, 30,382 and 15,289.36

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Solution

The fourth proportional to 22,006, 30,382 and 15,289.36 is: 21,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,006 : 30,382 = 15,289.36 : x
  2. Step 2: Convert to fraction form
    22,006/30,382 = 15,289.36/x
  3. Step 3: Cross multiply
    22,006x = 30,382 × 15,289.36
  4. Step 4: Simplify right side
    22,006x = 464,521,335.52
  5. Step 5: Solve for x
    x = 464,521,335.52/22,006
  6. Step 6: Final answer
    x = 21,108.85

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1.5x scale

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.