Home / 21,536.09-29,725.68-13,982.03

Finding the Fourth Proportional to 21,536.09, 29,725.68 and 13,982.03

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Solution

The fourth proportional to 21,536.09, 29,725.68 and 13,982.03 is: 19,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,536.09 : 29,725.68 = 13,982.03 : x
  2. Step 2: Convert to fraction form
    21,536.09/29,725.68 = 13,982.03/x
  3. Step 3: Cross multiply
    21,536.09x = 29,725.68 × 13,982.03
  4. Step 4: Simplify right side
    21,536.09x = 415,625,130.99
  5. Step 5: Solve for x
    x = 415,625,130.99/21,536.09
  6. Step 6: Final answer
    x = 19,299.01

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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.