Home / 20,193.39-30,287.94-5,403.80

Finding the Fourth Proportional to 20,193.39, 30,287.94 and 5,403.80

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Solution

The fourth proportional to 20,193.39, 30,287.94 and 5,403.80 is: 8,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.39 : 30,287.94 = 5,403.80 : x
  2. Step 2: Convert to fraction form
    20,193.39/30,287.94 = 5,403.80/x
  3. Step 3: Cross multiply
    20,193.39x = 30,287.94 × 5,403.80
  4. Step 4: Simplify right side
    20,193.39x = 163,670,025.63
  5. Step 5: Solve for x
    x = 163,670,025.63/20,193.39
  6. Step 6: Final answer
    x = 8,105.13

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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.