Home / 40,328.21-60,504.62-20,620.61

Finding the Fourth Proportional to 40,328.21, 60,504.62 and 20,620.61

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Solution

The fourth proportional to 40,328.21, 60,504.62 and 20,620.61 is: 30,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,328.21 : 60,504.62 = 20,620.61 : x
  2. Step 2: Convert to fraction form
    40,328.21/60,504.62 = 20,620.61/x
  3. Step 3: Cross multiply
    40,328.21x = 60,504.62 × 20,620.61
  4. Step 4: Simplify right side
    40,328.21x = 1,247,641,766.59
  5. Step 5: Solve for x
    x = 1,247,641,766.59/40,328.21
  6. Step 6: Final answer
    x = 30,937.20

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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.