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Finding the Fourth Proportional to 18,055.65, 27,083.32 and 4,908

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Solution

The fourth proportional to 18,055.65, 27,083.32 and 4,908 is: 7,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.65 : 27,083.32 = 4,908 : x
  2. Step 2: Convert to fraction form
    18,055.65/27,083.32 = 4,908/x
  3. Step 3: Cross multiply
    18,055.65x = 27,083.32 × 4,908
  4. Step 4: Simplify right side
    18,055.65x = 132,924,934.56
  5. Step 5: Solve for x
    x = 132,924,934.56/18,055.65
  6. Step 6: Final answer
    x = 7,361.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.