Home / 20,287.25-30,425.97-5,495.21

Finding the Fourth Proportional to 20,287.25, 30,425.97 and 5,495.21

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Solution

The fourth proportional to 20,287.25, 30,425.97 and 5,495.21 is: 8,241.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.25 : 30,425.97 = 5,495.21 : x
  2. Step 2: Convert to fraction form
    20,287.25/30,425.97 = 5,495.21/x
  3. Step 3: Cross multiply
    20,287.25x = 30,425.97 × 5,495.21
  4. Step 4: Simplify right side
    20,287.25x = 167,197,094.60
  5. Step 5: Solve for x
    x = 167,197,094.60/20,287.25
  6. Step 6: Final answer
    x = 8,241.49

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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.