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Finding the Fourth Proportional to 33,060, 45,622.80 and 18,156

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Solution

The fourth proportional to 33,060, 45,622.80 and 18,156 is: 25,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,060 : 45,622.80 = 18,156 : x
  2. Step 2: Convert to fraction form
    33,060/45,622.80 = 18,156/x
  3. Step 3: Cross multiply
    33,060x = 45,622.80 × 18,156
  4. Step 4: Simplify right side
    33,060x = 828,327,556.80
  5. Step 5: Solve for x
    x = 828,327,556.80/33,060
  6. Step 6: Final answer
    x = 25,055.28

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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.