Home / 36,288.75-50,069.70-21,172.78

Finding the Fourth Proportional to 36,288.75, 50,069.70 and 21,172.78

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Solution

The fourth proportional to 36,288.75, 50,069.70 and 21,172.78 is: 29,213.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,288.75 : 50,069.70 = 21,172.78 : x
  2. Step 2: Convert to fraction form
    36,288.75/50,069.70 = 21,172.78/x
  3. Step 3: Cross multiply
    36,288.75x = 50,069.70 × 21,172.78
  4. Step 4: Simplify right side
    36,288.75x = 1,060,114,742.77
  5. Step 5: Solve for x
    x = 1,060,114,742.77/36,288.75
  6. Step 6: Final answer
    x = 29,213.32

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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.