Home / 22,867.11-31,556.79-13,309.38

Finding the Fourth Proportional to 22,867.11, 31,556.79 and 13,309.38

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Solution

The fourth proportional to 22,867.11, 31,556.79 and 13,309.38 is: 18,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,867.11 : 31,556.79 = 13,309.38 : x
  2. Step 2: Convert to fraction form
    22,867.11/31,556.79 = 13,309.38/x
  3. Step 3: Cross multiply
    22,867.11x = 31,556.79 × 13,309.38
  4. Step 4: Simplify right side
    22,867.11x = 420,001,309.69
  5. Step 5: Solve for x
    x = 420,001,309.69/22,867.11
  6. Step 6: Final answer
    x = 18,367.05

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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.