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Finding the Fourth Proportional to 18,117.78, 24,869.15 and 16,083.87

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Solution

The fourth proportional to 18,117.78, 24,869.15 and 16,083.87 is: 22,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.78 : 24,869.15 = 16,083.87 : x
  2. Step 2: Convert to fraction form
    18,117.78/24,869.15 = 16,083.87/x
  3. Step 3: Cross multiply
    18,117.78x = 24,869.15 × 16,083.87
  4. Step 4: Simplify right side
    18,117.78x = 399,992,107.48
  5. Step 5: Solve for x
    x = 399,992,107.48/18,117.78
  6. Step 6: Final answer
    x = 22,077.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.