Home / 39,986.98-59,944.81-20,255.38

Finding the Fourth Proportional to 39,986.98, 59,944.81 and 20,255.38

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Solution

The fourth proportional to 39,986.98, 59,944.81 and 20,255.38 is: 30,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.98 : 59,944.81 = 20,255.38 : x
  2. Step 2: Convert to fraction form
    39,986.98/59,944.81 = 20,255.38/x
  3. Step 3: Cross multiply
    39,986.98x = 59,944.81 × 20,255.38
  4. Step 4: Simplify right side
    39,986.98x = 1,214,204,905.58
  5. Step 5: Solve for x
    x = 1,214,204,905.58/39,986.98
  6. Step 6: Final answer
    x = 30,365.01

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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.