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Finding the Fourth Proportional to 18,377.61, 27,571.64 and 9,020.43

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Solution

The fourth proportional to 18,377.61, 27,571.64 and 9,020.43 is: 13,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.61 : 27,571.64 = 9,020.43 : x
  2. Step 2: Convert to fraction form
    18,377.61/27,571.64 = 9,020.43/x
  3. Step 3: Cross multiply
    18,377.61x = 27,571.64 × 9,020.43
  4. Step 4: Simplify right side
    18,377.61x = 248,708,048.61
  5. Step 5: Solve for x
    x = 248,708,048.61/18,377.61
  6. Step 6: Final answer
    x = 13,533.21

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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.