Home / 20,493.82-30,740.63-6,455.04

Finding the Fourth Proportional to 20,493.82, 30,740.63 and 6,455.04

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Solution

The fourth proportional to 20,493.82, 30,740.63 and 6,455.04 is: 9,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.82 : 30,740.63 = 6,455.04 : x
  2. Step 2: Convert to fraction form
    20,493.82/30,740.63 = 6,455.04/x
  3. Step 3: Cross multiply
    20,493.82x = 30,740.63 × 6,455.04
  4. Step 4: Simplify right side
    20,493.82x = 198,431,996.28
  5. Step 5: Solve for x
    x = 198,431,996.28/20,493.82
  6. Step 6: Final answer
    x = 9,682.53

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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.