Home / 36,665.07-54,997.82-13,290.90

Finding the Fourth Proportional to 36,665.07, 54,997.82 and 13,290.90

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Solution

The fourth proportional to 36,665.07, 54,997.82 and 13,290.90 is: 19,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,665.07 : 54,997.82 = 13,290.90 : x
  2. Step 2: Convert to fraction form
    36,665.07/54,997.82 = 13,290.90/x
  3. Step 3: Cross multiply
    36,665.07x = 54,997.82 × 13,290.90
  4. Step 4: Simplify right side
    36,665.07x = 730,970,459.38
  5. Step 5: Solve for x
    x = 730,970,459.38/36,665.07
  6. Step 6: Final answer
    x = 19,936.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.