Home / 22,569.26-31,145.70-13,138.42

Finding the Fourth Proportional to 22,569.26, 31,145.70 and 13,138.42

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Solution

The fourth proportional to 22,569.26, 31,145.70 and 13,138.42 is: 18,131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,569.26 : 31,145.70 = 13,138.42 : x
  2. Step 2: Convert to fraction form
    22,569.26/31,145.70 = 13,138.42/x
  3. Step 3: Cross multiply
    22,569.26x = 31,145.70 × 13,138.42
  4. Step 4: Simplify right side
    22,569.26x = 409,205,287.79
  5. Step 5: Solve for x
    x = 409,205,287.79/22,569.26
  6. Step 6: Final answer
    x = 18,131.09

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