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Finding the Fourth Proportional to 36,701.40, 50,648.40 and 20,785.56

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Solution

The fourth proportional to 36,701.40, 50,648.40 and 20,785.56 is: 28,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,701.40 : 50,648.40 = 20,785.56 : x
  2. Step 2: Convert to fraction form
    36,701.40/50,648.40 = 20,785.56/x
  3. Step 3: Cross multiply
    36,701.40x = 50,648.40 × 20,785.56
  4. Step 4: Simplify right side
    36,701.40x = 1,052,755,357.10
  5. Step 5: Solve for x
    x = 1,052,755,357.10/36,701.40
  6. Step 6: Final answer
    x = 28,684.34

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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.