Home / 22,671.87-31,278.22-13,110

Finding the Fourth Proportional to 22,671.87, 31,278.22 and 13,110

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Solution

The fourth proportional to 22,671.87, 31,278.22 and 13,110 is: 18,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,671.87 : 31,278.22 = 13,110 : x
  2. Step 2: Convert to fraction form
    22,671.87/31,278.22 = 13,110/x
  3. Step 3: Cross multiply
    22,671.87x = 31,278.22 × 13,110
  4. Step 4: Simplify right side
    22,671.87x = 410,057,464.20
  5. Step 5: Solve for x
    x = 410,057,464.20/22,671.87
  6. Step 6: Final answer
    x = 18,086.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.