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Finding the Fourth Proportional to 28,806, 39,736.16 and 16,867.04

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Solution

The fourth proportional to 28,806, 39,736.16 and 16,867.04 is: 23,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806 : 39,736.16 = 16,867.04 : x
  2. Step 2: Convert to fraction form
    28,806/39,736.16 = 16,867.04/x
  3. Step 3: Cross multiply
    28,806x = 39,736.16 × 16,867.04
  4. Step 4: Simplify right side
    28,806x = 670,231,400.17
  5. Step 5: Solve for x
    x = 670,231,400.17/28,806
  6. Step 6: Final answer
    x = 23,267.08

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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.