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Finding the Fourth Proportional to 36,887.50, 50,904.80 and 20,120.50

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Solution

The fourth proportional to 36,887.50, 50,904.80 and 20,120.50 is: 27,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,887.50 : 50,904.80 = 20,120.50 : x
  2. Step 2: Convert to fraction form
    36,887.50/50,904.80 = 20,120.50/x
  3. Step 3: Cross multiply
    36,887.50x = 50,904.80 × 20,120.50
  4. Step 4: Simplify right side
    36,887.50x = 1,024,230,028.40
  5. Step 5: Solve for x
    x = 1,024,230,028.40/36,887.50
  6. Step 6: Final answer
    x = 27,766.32

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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.