Home / 26,560.54-39,788.97-20,689.66

Finding the Fourth Proportional to 26,560.54, 39,788.97 and 20,689.66

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Solution

The fourth proportional to 26,560.54, 39,788.97 and 20,689.66 is: 30,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,560.54 : 39,788.97 = 20,689.66 : x
  2. Step 2: Convert to fraction form
    26,560.54/39,788.97 = 20,689.66/x
  3. Step 3: Cross multiply
    26,560.54x = 39,788.97 × 20,689.66
  4. Step 4: Simplify right side
    26,560.54x = 823,220,261.05
  5. Step 5: Solve for x
    x = 823,220,261.05/26,560.54
  6. Step 6: Final answer
    x = 30,994.11

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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.