Home / 39,912.67-59,906.10-20,205.19

Finding the Fourth Proportional to 39,912.67, 59,906.10 and 20,205.19

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Solution

The fourth proportional to 39,912.67, 59,906.10 and 20,205.19 is: 30,326.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.67 : 59,906.10 = 20,205.19 : x
  2. Step 2: Convert to fraction form
    39,912.67/59,906.10 = 20,205.19/x
  3. Step 3: Cross multiply
    39,912.67x = 59,906.10 × 20,205.19
  4. Step 4: Simplify right side
    39,912.67x = 1,210,414,132.66
  5. Step 5: Solve for x
    x = 1,210,414,132.66/39,912.67
  6. Step 6: Final answer
    x = 30,326.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.