Home / 37,138.73-51,250.73-21,005.75

Finding the Fourth Proportional to 37,138.73, 51,250.73 and 21,005.75

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Solution

The fourth proportional to 37,138.73, 51,250.73 and 21,005.75 is: 28,987.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.73 : 51,250.73 = 21,005.75 : x
  2. Step 2: Convert to fraction form
    37,138.73/51,250.73 = 21,005.75/x
  3. Step 3: Cross multiply
    37,138.73x = 51,250.73 × 21,005.75
  4. Step 4: Simplify right side
    37,138.73x = 1,076,560,044.80
  5. Step 5: Solve for x
    x = 1,076,560,044.80/37,138.73
  6. Step 6: Final answer
    x = 28,987.53

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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.