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Finding the Fourth Proportional to 18,630.25, 27,919.17 and 14,450.83

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Solution

The fourth proportional to 18,630.25, 27,919.17 and 14,450.83 is: 21,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.25 : 27,919.17 = 14,450.83 : x
  2. Step 2: Convert to fraction form
    18,630.25/27,919.17 = 14,450.83/x
  3. Step 3: Cross multiply
    18,630.25x = 27,919.17 × 14,450.83
  4. Step 4: Simplify right side
    18,630.25x = 403,455,179.41
  5. Step 5: Solve for x
    x = 403,455,179.41/18,630.25
  6. Step 6: Final answer
    x = 21,655.92

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1.5x scale

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.