Home / 37,888-52,285.68-21,121.12

Finding the Fourth Proportional to 37,888, 52,285.68 and 21,121.12

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Solution

The fourth proportional to 37,888, 52,285.68 and 21,121.12 is: 29,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,888 : 52,285.68 = 21,121.12 : x
  2. Step 2: Convert to fraction form
    37,888/52,285.68 = 21,121.12/x
  3. Step 3: Cross multiply
    37,888x = 52,285.68 × 21,121.12
  4. Step 4: Simplify right side
    37,888x = 1,104,332,121.56
  5. Step 5: Solve for x
    x = 1,104,332,121.56/37,888
  6. Step 6: Final answer
    x = 29,147.28

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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.