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Finding the Fourth Proportional to 28,516, 39,352.08 and 17,338

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Solution

The fourth proportional to 28,516, 39,352.08 and 17,338 is: 23,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516 : 39,352.08 = 17,338 : x
  2. Step 2: Convert to fraction form
    28,516/39,352.08 = 17,338/x
  3. Step 3: Cross multiply
    28,516x = 39,352.08 × 17,338
  4. Step 4: Simplify right side
    28,516x = 682,286,363.04
  5. Step 5: Solve for x
    x = 682,286,363.04/28,516
  6. Step 6: Final answer
    x = 23,926.44

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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.