Home / 22,789.14-31,449.16-13,357.77

Finding the Fourth Proportional to 22,789.14, 31,449.16 and 13,357.77

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Solution

The fourth proportional to 22,789.14, 31,449.16 and 13,357.77 is: 18,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,789.14 : 31,449.16 = 13,357.77 : x
  2. Step 2: Convert to fraction form
    22,789.14/31,449.16 = 13,357.77/x
  3. Step 3: Cross multiply
    22,789.14x = 31,449.16 × 13,357.77
  4. Step 4: Simplify right side
    22,789.14x = 420,090,645.97
  5. Step 5: Solve for x
    x = 420,090,645.97/22,789.14
  6. Step 6: Final answer
    x = 18,433.81

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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.