Home / 18,090.24-27,135.81-4,942.72

Finding the Fourth Proportional to 18,090.24, 27,135.81 and 4,942.72

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Solution

The fourth proportional to 18,090.24, 27,135.81 and 4,942.72 is: 7,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.24 : 27,135.81 = 4,942.72 : x
  2. Step 2: Convert to fraction form
    18,090.24/27,135.81 = 4,942.72/x
  3. Step 3: Cross multiply
    18,090.24x = 27,135.81 × 4,942.72
  4. Step 4: Simplify right side
    18,090.24x = 134,124,744.72
  5. Step 5: Solve for x
    x = 134,124,744.72/18,090.24
  6. Step 6: Final answer
    x = 7,414.21

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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.