Home / 21,344.32-29,454.96-11,914.48

Finding the Fourth Proportional to 21,344.32, 29,454.96 and 11,914.48

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Solution

The fourth proportional to 21,344.32, 29,454.96 and 11,914.48 is: 16,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.32 : 29,454.96 = 11,914.48 : x
  2. Step 2: Convert to fraction form
    21,344.32/29,454.96 = 11,914.48/x
  3. Step 3: Cross multiply
    21,344.32x = 29,454.96 × 11,914.48
  4. Step 4: Simplify right side
    21,344.32x = 350,940,531.82
  5. Step 5: Solve for x
    x = 350,940,531.82/21,344.32
  6. Step 6: Final answer
    x = 16,441.87

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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.