Home / 20,266.74-30,398.22-5,475.60

Finding the Fourth Proportional to 20,266.74, 30,398.22 and 5,475.60

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Solution

The fourth proportional to 20,266.74, 30,398.22 and 5,475.60 is: 8,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.74 : 30,398.22 = 5,475.60 : x
  2. Step 2: Convert to fraction form
    20,266.74/30,398.22 = 5,475.60/x
  3. Step 3: Cross multiply
    20,266.74x = 30,398.22 × 5,475.60
  4. Step 4: Simplify right side
    20,266.74x = 166,448,493.43
  5. Step 5: Solve for x
    x = 166,448,493.43/20,266.74
  6. Step 6: Final answer
    x = 8,212.89

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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.