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Finding the Fourth Proportional to 33,059, 45,621.42 and 18,155

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Solution

The fourth proportional to 33,059, 45,621.42 and 18,155 is: 25,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,059 : 45,621.42 = 18,155 : x
  2. Step 2: Convert to fraction form
    33,059/45,621.42 = 18,155/x
  3. Step 3: Cross multiply
    33,059x = 45,621.42 × 18,155
  4. Step 4: Simplify right side
    33,059x = 828,256,880.10
  5. Step 5: Solve for x
    x = 828,256,880.10/33,059
  6. Step 6: Final answer
    x = 25,053.90

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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.