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Finding the Fourth Proportional to 36,280.40, 54,353.40 and 20,651.60

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Solution

The fourth proportional to 36,280.40, 54,353.40 and 20,651.60 is: 30,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,280.40 : 54,353.40 = 20,651.60 : x
  2. Step 2: Convert to fraction form
    36,280.40/54,353.40 = 20,651.60/x
  3. Step 3: Cross multiply
    36,280.40x = 54,353.40 × 20,651.60
  4. Step 4: Simplify right side
    36,280.40x = 1,122,484,675.44
  5. Step 5: Solve for x
    x = 1,122,484,675.44/36,280.40
  6. Step 6: Final answer
    x = 30,939.15

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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.