Home / 20,017.37-30,035.39-8,922.90

Finding the Fourth Proportional to 20,017.37, 30,035.39 and 8,922.90

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Solution

The fourth proportional to 20,017.37, 30,035.39 and 8,922.90 is: 13,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.37 : 30,035.39 = 8,922.90 : x
  2. Step 2: Convert to fraction form
    20,017.37/30,035.39 = 8,922.90/x
  3. Step 3: Cross multiply
    20,017.37x = 30,035.39 × 8,922.90
  4. Step 4: Simplify right side
    20,017.37x = 268,002,781.43
  5. Step 5: Solve for x
    x = 268,002,781.43/20,017.37
  6. Step 6: Final answer
    x = 13,388.51

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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.