Home / 39,990.22-60,022.23-20,282.61

Finding the Fourth Proportional to 39,990.22, 60,022.23 and 20,282.61

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Solution

The fourth proportional to 39,990.22, 60,022.23 and 20,282.61 is: 30,442.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990.22 : 60,022.23 = 20,282.61 : x
  2. Step 2: Convert to fraction form
    39,990.22/60,022.23 = 20,282.61/x
  3. Step 3: Cross multiply
    39,990.22x = 60,022.23 × 20,282.61
  4. Step 4: Simplify right side
    39,990.22x = 1,217,407,631.44
  5. Step 5: Solve for x
    x = 1,217,407,631.44/39,990.22
  6. Step 6: Final answer
    x = 30,442.64

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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.