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Finding the Fourth Proportional to 25,806, 38,715.50 and 7,338

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Solution

The fourth proportional to 25,806, 38,715.50 and 7,338 is: 11,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806 : 38,715.50 = 7,338 : x
  2. Step 2: Convert to fraction form
    25,806/38,715.50 = 7,338/x
  3. Step 3: Cross multiply
    25,806x = 38,715.50 × 7,338
  4. Step 4: Simplify right side
    25,806x = 284,094,339
  5. Step 5: Solve for x
    x = 284,094,339/25,806
  6. Step 6: Final answer
    x = 11,008.85

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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.