Home / 20,325.42-30,480.55-6,994.69

Finding the Fourth Proportional to 20,325.42, 30,480.55 and 6,994.69

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Solution

The fourth proportional to 20,325.42, 30,480.55 and 6,994.69 is: 10,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.42 : 30,480.55 = 6,994.69 : x
  2. Step 2: Convert to fraction form
    20,325.42/30,480.55 = 6,994.69/x
  3. Step 3: Cross multiply
    20,325.42x = 30,480.55 × 6,994.69
  4. Step 4: Simplify right side
    20,325.42x = 213,201,998.28
  5. Step 5: Solve for x
    x = 213,201,998.28/20,325.42
  6. Step 6: Final answer
    x = 10,489.43

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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.