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Finding the Fourth Proportional to 28,793, 39,718.29 and 16,854.04

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Solution

The fourth proportional to 28,793, 39,718.29 and 16,854.04 is: 23,249.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793 : 39,718.29 = 16,854.04 : x
  2. Step 2: Convert to fraction form
    28,793/39,718.29 = 16,854.04/x
  3. Step 3: Cross multiply
    28,793x = 39,718.29 × 16,854.04
  4. Step 4: Simplify right side
    28,793x = 669,413,648.39
  5. Step 5: Solve for x
    x = 669,413,648.39/28,793
  6. Step 6: Final answer
    x = 23,249.18

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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.