Home / 21,353.14-29,467.26-11,921.62

Finding the Fourth Proportional to 21,353.14, 29,467.26 and 11,921.62

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Solution

The fourth proportional to 21,353.14, 29,467.26 and 11,921.62 is: 16,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.14 : 29,467.26 = 11,921.62 : x
  2. Step 2: Convert to fraction form
    21,353.14/29,467.26 = 11,921.62/x
  3. Step 3: Cross multiply
    21,353.14x = 29,467.26 × 11,921.62
  4. Step 4: Simplify right side
    21,353.14x = 351,297,476.16
  5. Step 5: Solve for x
    x = 351,297,476.16/21,353.14
  6. Step 6: Final answer
    x = 16,451.79

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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.