Home / 21,358.14-29,474.82-11,927.31

Finding the Fourth Proportional to 21,358.14, 29,474.82 and 11,927.31

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Solution

The fourth proportional to 21,358.14, 29,474.82 and 11,927.31 is: 16,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.14 : 29,474.82 = 11,927.31 : x
  2. Step 2: Convert to fraction form
    21,358.14/29,474.82 = 11,927.31/x
  3. Step 3: Cross multiply
    21,358.14x = 29,474.82 × 11,927.31
  4. Step 4: Simplify right side
    21,358.14x = 351,555,315.33
  5. Step 5: Solve for x
    x = 351,555,315.33/21,358.14
  6. Step 6: Final answer
    x = 16,460.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.