Home / 21,342.25-29,452.31-11,910.88

Finding the Fourth Proportional to 21,342.25, 29,452.31 and 11,910.88

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Solution

The fourth proportional to 21,342.25, 29,452.31 and 11,910.88 is: 16,437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.25 : 29,452.31 = 11,910.88 : x
  2. Step 2: Convert to fraction form
    21,342.25/29,452.31 = 11,910.88/x
  3. Step 3: Cross multiply
    21,342.25x = 29,452.31 × 11,910.88
  4. Step 4: Simplify right side
    21,342.25x = 350,802,930.13
  5. Step 5: Solve for x
    x = 350,802,930.13/21,342.25
  6. Step 6: Final answer
    x = 16,437.02

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1.5x scale

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.