Home / 21,176.28-29,222.82-11,744.64

Finding the Fourth Proportional to 21,176.28, 29,222.82 and 11,744.64

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Solution

The fourth proportional to 21,176.28, 29,222.82 and 11,744.64 is: 16,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.28 : 29,222.82 = 11,744.64 : x
  2. Step 2: Convert to fraction form
    21,176.28/29,222.82 = 11,744.64/x
  3. Step 3: Cross multiply
    21,176.28x = 29,222.82 × 11,744.64
  4. Step 4: Simplify right side
    21,176.28x = 343,211,500.68
  5. Step 5: Solve for x
    x = 343,211,500.68/21,176.28
  6. Step 6: Final answer
    x = 16,207.36

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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.