Home / 37,993.70-52,431.05-20,998.91

Finding the Fourth Proportional to 37,993.70, 52,431.05 and 20,998.91

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Solution

The fourth proportional to 37,993.70, 52,431.05 and 20,998.91 is: 28,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,993.70 : 52,431.05 = 20,998.91 : x
  2. Step 2: Convert to fraction form
    37,993.70/52,431.05 = 20,998.91/x
  3. Step 3: Cross multiply
    37,993.70x = 52,431.05 × 20,998.91
  4. Step 4: Simplify right side
    37,993.70x = 1,100,995,083.73
  5. Step 5: Solve for x
    x = 1,100,995,083.73/37,993.70
  6. Step 6: Final answer
    x = 28,978.36

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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.