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Finding the Fourth Proportional to 26,986, 37,239.88 and 15,049.08

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Solution

The fourth proportional to 26,986, 37,239.88 and 15,049.08 is: 20,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,986 : 37,239.88 = 15,049.08 : x
  2. Step 2: Convert to fraction form
    26,986/37,239.88 = 15,049.08/x
  3. Step 3: Cross multiply
    26,986x = 37,239.88 × 15,049.08
  4. Step 4: Simplify right side
    26,986x = 560,425,933.31
  5. Step 5: Solve for x
    x = 560,425,933.31/26,986
  6. Step 6: Final answer
    x = 20,767.28

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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.