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Finding the Fourth Proportional to 17,579.70, 26,377.92 and 8,820.81

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Solution

The fourth proportional to 17,579.70, 26,377.92 and 8,820.81 is: 13,235.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,579.70 : 26,377.92 = 8,820.81 : x
  2. Step 2: Convert to fraction form
    17,579.70/26,377.92 = 8,820.81/x
  3. Step 3: Cross multiply
    17,579.70x = 26,377.92 × 8,820.81
  4. Step 4: Simplify right side
    17,579.70x = 232,674,620.52
  5. Step 5: Solve for x
    x = 232,674,620.52/17,579.70
  6. Step 6: Final answer
    x = 13,235.41

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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.