Home / 21,227.47-31,814.24-11,853.95

Finding the Fourth Proportional to 21,227.47, 31,814.24 and 11,853.95

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Solution

The fourth proportional to 21,227.47, 31,814.24 and 11,853.95 is: 17,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.47 : 31,814.24 = 11,853.95 : x
  2. Step 2: Convert to fraction form
    21,227.47/31,814.24 = 11,853.95/x
  3. Step 3: Cross multiply
    21,227.47x = 31,814.24 × 11,853.95
  4. Step 4: Simplify right side
    21,227.47x = 377,124,191.91
  5. Step 5: Solve for x
    x = 377,124,191.91/21,227.47
  6. Step 6: Final answer
    x = 17,765.86

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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.