Home / 21,257.41-29,336.60-11,825.97

Finding the Fourth Proportional to 21,257.41, 29,336.60 and 11,825.97

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Solution

The fourth proportional to 21,257.41, 29,336.60 and 11,825.97 is: 16,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.41 : 29,336.60 = 11,825.97 : x
  2. Step 2: Convert to fraction form
    21,257.41/29,336.60 = 11,825.97/x
  3. Step 3: Cross multiply
    21,257.41x = 29,336.60 × 11,825.97
  4. Step 4: Simplify right side
    21,257.41x = 346,933,545.69
  5. Step 5: Solve for x
    x = 346,933,545.69/21,257.41
  6. Step 6: Final answer
    x = 16,320.59

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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.