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Finding the Fourth Proportional to 20,367.99, 30,544.49 and 7,037.60

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Solution

The fourth proportional to 20,367.99, 30,544.49 and 7,037.60 is: 10,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.99 : 30,544.49 = 7,037.60 : x
  2. Step 2: Convert to fraction form
    20,367.99/30,544.49 = 7,037.60/x
  3. Step 3: Cross multiply
    20,367.99x = 30,544.49 × 7,037.60
  4. Step 4: Simplify right side
    20,367.99x = 214,959,939.51
  5. Step 5: Solve for x
    x = 214,959,939.51/20,367.99
  6. Step 6: Final answer
    x = 10,553.81

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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.