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Finding the Fourth Proportional to 33,072, 45,642.42 and 18,170.88

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Solution

The fourth proportional to 33,072, 45,642.42 and 18,170.88 is: 25,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,072 : 45,642.42 = 18,170.88 : x
  2. Step 2: Convert to fraction form
    33,072/45,642.42 = 18,170.88/x
  3. Step 3: Cross multiply
    33,072x = 45,642.42 × 18,170.88
  4. Step 4: Simplify right side
    33,072x = 829,362,936.73
  5. Step 5: Solve for x
    x = 829,362,936.73/33,072
  6. Step 6: Final answer
    x = 25,077.50

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1.5x scale

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.