Home / 18,489.30-27,726.84-14,548.31

Finding the Fourth Proportional to 18,489.30, 27,726.84 and 14,548.31

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Solution

The fourth proportional to 18,489.30, 27,726.84 and 14,548.31 is: 21,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.30 : 27,726.84 = 14,548.31 : x
  2. Step 2: Convert to fraction form
    18,489.30/27,726.84 = 14,548.31/x
  3. Step 3: Cross multiply
    18,489.30x = 27,726.84 × 14,548.31
  4. Step 4: Simplify right side
    18,489.30x = 403,378,628.98
  5. Step 5: Solve for x
    x = 403,378,628.98/18,489.30
  6. Step 6: Final answer
    x = 21,816.87

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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.