Home / 21,404.31-29,538.81-11,844.03

Finding the Fourth Proportional to 21,404.31, 29,538.81 and 11,844.03

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Solution

The fourth proportional to 21,404.31, 29,538.81 and 11,844.03 is: 16,345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.31 : 29,538.81 = 11,844.03 : x
  2. Step 2: Convert to fraction form
    21,404.31/29,538.81 = 11,844.03/x
  3. Step 3: Cross multiply
    21,404.31x = 29,538.81 × 11,844.03
  4. Step 4: Simplify right side
    21,404.31x = 349,858,551.80
  5. Step 5: Solve for x
    x = 349,858,551.80/21,404.31
  6. Step 6: Final answer
    x = 16,345.24

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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.