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Finding the Fourth Proportional to 33,668, 46,463.28 and 18,764

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Solution

The fourth proportional to 33,668, 46,463.28 and 18,764 is: 25,895.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,668 : 46,463.28 = 18,764 : x
  2. Step 2: Convert to fraction form
    33,668/46,463.28 = 18,764/x
  3. Step 3: Cross multiply
    33,668x = 46,463.28 × 18,764
  4. Step 4: Simplify right side
    33,668x = 871,836,985.92
  5. Step 5: Solve for x
    x = 871,836,985.92/33,668
  6. Step 6: Final answer
    x = 25,895.12

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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.