Home / 39,827.67-59,778.42-20,120.07

Finding the Fourth Proportional to 39,827.67, 59,778.42 and 20,120.07

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Solution

The fourth proportional to 39,827.67, 59,778.42 and 20,120.07 is: 30,198.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,827.67 : 59,778.42 = 20,120.07 : x
  2. Step 2: Convert to fraction form
    39,827.67/59,778.42 = 20,120.07/x
  3. Step 3: Cross multiply
    39,827.67x = 59,778.42 × 20,120.07
  4. Step 4: Simplify right side
    39,827.67x = 1,202,745,994.89
  5. Step 5: Solve for x
    x = 1,202,745,994.89/39,827.67
  6. Step 6: Final answer
    x = 30,198.75

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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.