Home / 26,378.70-39,578.49-11,577.30

Finding the Fourth Proportional to 26,378.70, 39,578.49 and 11,577.30

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Solution

The fourth proportional to 26,378.70, 39,578.49 and 11,577.30 is: 17,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,378.70 : 39,578.49 = 11,577.30 : x
  2. Step 2: Convert to fraction form
    26,378.70/39,578.49 = 11,577.30/x
  3. Step 3: Cross multiply
    26,378.70x = 39,578.49 × 11,577.30
  4. Step 4: Simplify right side
    26,378.70x = 458,212,052.28
  5. Step 5: Solve for x
    x = 458,212,052.28/26,378.70
  6. Step 6: Final answer
    x = 17,370.53

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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.