Home / 21,175.13-29,222.28-11,744.30

Finding the Fourth Proportional to 21,175.13, 29,222.28 and 11,744.30

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Solution

The fourth proportional to 21,175.13, 29,222.28 and 11,744.30 is: 16,207.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.13 : 29,222.28 = 11,744.30 : x
  2. Step 2: Convert to fraction form
    21,175.13/29,222.28 = 11,744.30/x
  3. Step 3: Cross multiply
    21,175.13x = 29,222.28 × 11,744.30
  4. Step 4: Simplify right side
    21,175.13x = 343,195,076.89
  5. Step 5: Solve for x
    x = 343,195,076.89/21,175.13
  6. Step 6: Final answer
    x = 16,207.46

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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.