Home / 21,232.17-31,859.30-11,866.41

Finding the Fourth Proportional to 21,232.17, 31,859.30 and 11,866.41

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Solution

The fourth proportional to 21,232.17, 31,859.30 and 11,866.41 is: 17,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.17 : 31,859.30 = 11,866.41 : x
  2. Step 2: Convert to fraction form
    21,232.17/31,859.30 = 11,866.41/x
  3. Step 3: Cross multiply
    21,232.17x = 31,859.30 × 11,866.41
  4. Step 4: Simplify right side
    21,232.17x = 378,055,456.78
  5. Step 5: Solve for x
    x = 378,055,456.78/21,232.17
  6. Step 6: Final answer
    x = 17,805.79

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1.5x scale

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.