Home / 36,909.90-50,936.85-20,993.94

Finding the Fourth Proportional to 36,909.90, 50,936.85 and 20,993.94

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Solution

The fourth proportional to 36,909.90, 50,936.85 and 20,993.94 is: 28,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,909.90 : 50,936.85 = 20,993.94 : x
  2. Step 2: Convert to fraction form
    36,909.90/50,936.85 = 20,993.94/x
  3. Step 3: Cross multiply
    36,909.90x = 50,936.85 × 20,993.94
  4. Step 4: Simplify right side
    36,909.90x = 1,069,365,172.69
  5. Step 5: Solve for x
    x = 1,069,365,172.69/36,909.90
  6. Step 6: Final answer
    x = 28,972.31

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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.