Home / 37,105.78-51,205.40-20,109.62

Finding the Fourth Proportional to 37,105.78, 51,205.40 and 20,109.62

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Solution

The fourth proportional to 37,105.78, 51,205.40 and 20,109.62 is: 27,750.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,105.78 : 51,205.40 = 20,109.62 : x
  2. Step 2: Convert to fraction form
    37,105.78/51,205.40 = 20,109.62/x
  3. Step 3: Cross multiply
    37,105.78x = 51,205.40 × 20,109.62
  4. Step 4: Simplify right side
    37,105.78x = 1,029,721,135.95
  5. Step 5: Solve for x
    x = 1,029,721,135.95/37,105.78
  6. Step 6: Final answer
    x = 27,750.96

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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.