Home / 21,175.30-29,219.96-11,742.04

Finding the Fourth Proportional to 21,175.30, 29,219.96 and 11,742.04

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Solution

The fourth proportional to 21,175.30, 29,219.96 and 11,742.04 is: 16,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.30 : 29,219.96 = 11,742.04 : x
  2. Step 2: Convert to fraction form
    21,175.30/29,219.96 = 11,742.04/x
  3. Step 3: Cross multiply
    21,175.30x = 29,219.96 × 11,742.04
  4. Step 4: Simplify right side
    21,175.30x = 343,101,939.12
  5. Step 5: Solve for x
    x = 343,101,939.12/21,175.30
  6. Step 6: Final answer
    x = 16,202.93

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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.