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Finding the Fourth Proportional to 26,245.80, 39,249 and 19,587

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Solution

The fourth proportional to 26,245.80, 39,249 and 19,587 is: 29,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,245.80 : 39,249 = 19,587 : x
  2. Step 2: Convert to fraction form
    26,245.80/39,249 = 19,587/x
  3. Step 3: Cross multiply
    26,245.80x = 39,249 × 19,587
  4. Step 4: Simplify right side
    26,245.80x = 768,770,163
  5. Step 5: Solve for x
    x = 768,770,163/26,245.80
  6. Step 6: Final answer
    x = 29,291.17

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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.