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Finding the Fourth Proportional to 26,163, 39,217.02 and 12,817.62

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Solution

The fourth proportional to 26,163, 39,217.02 and 12,817.62 is: 19,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,163 : 39,217.02 = 12,817.62 : x
  2. Step 2: Convert to fraction form
    26,163/39,217.02 = 12,817.62/x
  3. Step 3: Cross multiply
    26,163x = 39,217.02 × 12,817.62
  4. Step 4: Simplify right side
    26,163x = 502,668,859.89
  5. Step 5: Solve for x
    x = 502,668,859.89/26,163
  6. Step 6: Final answer
    x = 19,212.97

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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.