Home / 18,231.45-27,345.15-14,938.80

Finding the Fourth Proportional to 18,231.45, 27,345.15 and 14,938.80

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Solution

The fourth proportional to 18,231.45, 27,345.15 and 14,938.80 is: 22,406.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.45 : 27,345.15 = 14,938.80 : x
  2. Step 2: Convert to fraction form
    18,231.45/27,345.15 = 14,938.80/x
  3. Step 3: Cross multiply
    18,231.45x = 27,345.15 × 14,938.80
  4. Step 4: Simplify right side
    18,231.45x = 408,503,726.82
  5. Step 5: Solve for x
    x = 408,503,726.82/18,231.45
  6. Step 6: Final answer
    x = 22,406.54

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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.