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Finding the Fourth Proportional to 36,678.60, 50,616.62 and 20,766.12

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Solution

The fourth proportional to 36,678.60, 50,616.62 and 20,766.12 is: 28,657.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,678.60 : 50,616.62 = 20,766.12 : x
  2. Step 2: Convert to fraction form
    36,678.60/50,616.62 = 20,766.12/x
  3. Step 3: Cross multiply
    36,678.60x = 50,616.62 × 20,766.12
  4. Step 4: Simplify right side
    36,678.60x = 1,051,110,804.91
  5. Step 5: Solve for x
    x = 1,051,110,804.91/36,678.60
  6. Step 6: Final answer
    x = 28,657.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.