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Finding the Fourth Proportional to 26,443, 39,676.60 and 11,454.70

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Solution

The fourth proportional to 26,443, 39,676.60 and 11,454.70 is: 17,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,443 : 39,676.60 = 11,454.70 : x
  2. Step 2: Convert to fraction form
    26,443/39,676.60 = 11,454.70/x
  3. Step 3: Cross multiply
    26,443x = 39,676.60 × 11,454.70
  4. Step 4: Simplify right side
    26,443x = 454,483,550.02
  5. Step 5: Solve for x
    x = 454,483,550.02/26,443
  6. Step 6: Final answer
    x = 17,187.29

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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.