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Finding the Fourth Proportional to 33,021, 45,568.98 and 18,117

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Solution

The fourth proportional to 33,021, 45,568.98 and 18,117 is: 25,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,021 : 45,568.98 = 18,117 : x
  2. Step 2: Convert to fraction form
    33,021/45,568.98 = 18,117/x
  3. Step 3: Cross multiply
    33,021x = 45,568.98 × 18,117
  4. Step 4: Simplify right side
    33,021x = 825,573,210.66
  5. Step 5: Solve for x
    x = 825,573,210.66/33,021
  6. Step 6: Final answer
    x = 25,001.46

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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.