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Finding the Fourth Proportional to 22,569, 31,145.22 and 12,633

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Solution

The fourth proportional to 22,569, 31,145.22 and 12,633 is: 17,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,569 : 31,145.22 = 12,633 : x
  2. Step 2: Convert to fraction form
    22,569/31,145.22 = 12,633/x
  3. Step 3: Cross multiply
    22,569x = 31,145.22 × 12,633
  4. Step 4: Simplify right side
    22,569x = 393,457,564.26
  5. Step 5: Solve for x
    x = 393,457,564.26/22,569
  6. Step 6: Final answer
    x = 17,433.54

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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.