Home / 21,062.28-29,066.40-11,631.44

Finding the Fourth Proportional to 21,062.28, 29,066.40 and 11,631.44

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Solution

The fourth proportional to 21,062.28, 29,066.40 and 11,631.44 is: 16,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.28 : 29,066.40 = 11,631.44 : x
  2. Step 2: Convert to fraction form
    21,062.28/29,066.40 = 11,631.44/x
  3. Step 3: Cross multiply
    21,062.28x = 29,066.40 × 11,631.44
  4. Step 4: Simplify right side
    21,062.28x = 338,084,087.62
  5. Step 5: Solve for x
    x = 338,084,087.62/21,062.28
  6. Step 6: Final answer
    x = 16,051.64

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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.