Home / 37,936-52,351.68-21,169.12

Finding the Fourth Proportional to 37,936, 52,351.68 and 21,169.12

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Solution

The fourth proportional to 37,936, 52,351.68 and 21,169.12 is: 29,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,936 : 52,351.68 = 21,169.12 : x
  2. Step 2: Convert to fraction form
    37,936/52,351.68 = 21,169.12/x
  3. Step 3: Cross multiply
    37,936x = 52,351.68 × 21,169.12
  4. Step 4: Simplify right side
    37,936x = 1,108,238,996.12
  5. Step 5: Solve for x
    x = 1,108,238,996.12/37,936
  6. Step 6: Final answer
    x = 29,213.39

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Double scale
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1.5x scale

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.