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Finding the Fourth Proportional to 33,435, 46,140.30 and 18,531

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Solution

The fourth proportional to 33,435, 46,140.30 and 18,531 is: 25,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,435 : 46,140.30 = 18,531 : x
  2. Step 2: Convert to fraction form
    33,435/46,140.30 = 18,531/x
  3. Step 3: Cross multiply
    33,435x = 46,140.30 × 18,531
  4. Step 4: Simplify right side
    33,435x = 855,025,899.30
  5. Step 5: Solve for x
    x = 855,025,899.30/33,435
  6. Step 6: Final answer
    x = 25,572.78

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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.