Home / 18,657.72-27,976.68-14,031

Finding the Fourth Proportional to 18,657.72, 27,976.68 and 14,031

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Solution

The fourth proportional to 18,657.72, 27,976.68 and 14,031 is: 21,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,657.72 : 27,976.68 = 14,031 : x
  2. Step 2: Convert to fraction form
    18,657.72/27,976.68 = 14,031/x
  3. Step 3: Cross multiply
    18,657.72x = 27,976.68 × 14,031
  4. Step 4: Simplify right side
    18,657.72x = 392,540,797.08
  5. Step 5: Solve for x
    x = 392,540,797.08/18,657.72
  6. Step 6: Final answer
    x = 21,039.05

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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.