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Finding the Fourth Proportional to 33,636, 46,419.12 and 18,732

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Solution

The fourth proportional to 33,636, 46,419.12 and 18,732 is: 25,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,636 : 46,419.12 = 18,732 : x
  2. Step 2: Convert to fraction form
    33,636/46,419.12 = 18,732/x
  3. Step 3: Cross multiply
    33,636x = 46,419.12 × 18,732
  4. Step 4: Simplify right side
    33,636x = 869,522,955.84
  5. Step 5: Solve for x
    x = 869,522,955.84/33,636
  6. Step 6: Final answer
    x = 25,850.96

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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.