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Finding the Fourth Proportional to 33,509.60, 50,206.80 and 21,816.80

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Solution

The fourth proportional to 33,509.60, 50,206.80 and 21,816.80 is: 32,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,509.60 : 50,206.80 = 21,816.80 : x
  2. Step 2: Convert to fraction form
    33,509.60/50,206.80 = 21,816.80/x
  3. Step 3: Cross multiply
    33,509.60x = 50,206.80 × 21,816.80
  4. Step 4: Simplify right side
    33,509.60x = 1,095,351,714.24
  5. Step 5: Solve for x
    x = 1,095,351,714.24/33,509.60
  6. Step 6: Final answer
    x = 32,687.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.