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Finding the Fourth Proportional to 36,778.83, 50,755.76 and 20,865.67

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Solution

The fourth proportional to 36,778.83, 50,755.76 and 20,865.67 is: 28,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,778.83 : 50,755.76 = 20,865.67 : x
  2. Step 2: Convert to fraction form
    36,778.83/50,755.76 = 20,865.67/x
  3. Step 3: Cross multiply
    36,778.83x = 50,755.76 × 20,865.67
  4. Step 4: Simplify right side
    36,778.83x = 1,059,052,903.16
  5. Step 5: Solve for x
    x = 1,059,052,903.16/36,778.83
  6. Step 6: Final answer
    x = 28,795.18

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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.