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Finding the Fourth Proportional to 33,139.04, 45,731.80 and 18,235.04

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Solution

The fourth proportional to 33,139.04, 45,731.80 and 18,235.04 is: 25,164.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,139.04 : 45,731.80 = 18,235.04 : x
  2. Step 2: Convert to fraction form
    33,139.04/45,731.80 = 18,235.04/x
  3. Step 3: Cross multiply
    33,139.04x = 45,731.80 × 18,235.04
  4. Step 4: Simplify right side
    33,139.04x = 833,921,202.27
  5. Step 5: Solve for x
    x = 833,921,202.27/33,139.04
  6. Step 6: Final answer
    x = 25,164.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.