Home / 39,827.68-59,778.42-20,120.08

Finding the Fourth Proportional to 39,827.68, 59,778.42 and 20,120.08

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Solution

The fourth proportional to 39,827.68, 59,778.42 and 20,120.08 is: 30,198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,827.68 : 59,778.42 = 20,120.08 : x
  2. Step 2: Convert to fraction form
    39,827.68/59,778.42 = 20,120.08/x
  3. Step 3: Cross multiply
    39,827.68x = 59,778.42 × 20,120.08
  4. Step 4: Simplify right side
    39,827.68x = 1,202,746,592.67
  5. Step 5: Solve for x
    x = 1,202,746,592.67/39,827.68
  6. Step 6: Final answer
    x = 30,198.76

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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.