Home / 22,857.97-31,550.34-13,299.70

Finding the Fourth Proportional to 22,857.97, 31,550.34 and 13,299.70

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Solution

The fourth proportional to 22,857.97, 31,550.34 and 13,299.70 is: 18,357.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,857.97 : 31,550.34 = 13,299.70 : x
  2. Step 2: Convert to fraction form
    22,857.97/31,550.34 = 13,299.70/x
  3. Step 3: Cross multiply
    22,857.97x = 31,550.34 × 13,299.70
  4. Step 4: Simplify right side
    22,857.97x = 419,610,119.15
  5. Step 5: Solve for x
    x = 419,610,119.15/22,857.97
  6. Step 6: Final answer
    x = 18,357.28

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1.5x scale

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.