Home / 36,535.80-50,420.21-20,620.37

Finding the Fourth Proportional to 36,535.80, 50,420.21 and 20,620.37

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Solution

The fourth proportional to 36,535.80, 50,420.21 and 20,620.37 is: 28,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,535.80 : 50,420.21 = 20,620.37 : x
  2. Step 2: Convert to fraction form
    36,535.80/50,420.21 = 20,620.37/x
  3. Step 3: Cross multiply
    36,535.80x = 50,420.21 × 20,620.37
  4. Step 4: Simplify right side
    36,535.80x = 1,039,683,296.88
  5. Step 5: Solve for x
    x = 1,039,683,296.88/36,535.80
  6. Step 6: Final answer
    x = 28,456.56

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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.