Home / 21,175.92-29,222.91-11,744.64

Finding the Fourth Proportional to 21,175.92, 29,222.91 and 11,744.64

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Solution

The fourth proportional to 21,175.92, 29,222.91 and 11,744.64 is: 16,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.92 : 29,222.91 = 11,744.64 : x
  2. Step 2: Convert to fraction form
    21,175.92/29,222.91 = 11,744.64/x
  3. Step 3: Cross multiply
    21,175.92x = 29,222.91 × 11,744.64
  4. Step 4: Simplify right side
    21,175.92x = 343,212,557.70
  5. Step 5: Solve for x
    x = 343,212,557.70/21,175.92
  6. Step 6: Final answer
    x = 16,207.68

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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.