Home / 20,401.56-30,709.89-17,394.84

Finding the Fourth Proportional to 20,401.56, 30,709.89 and 17,394.84

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Solution

The fourth proportional to 20,401.56, 30,709.89 and 17,394.84 is: 26,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.56 : 30,709.89 = 17,394.84 : x
  2. Step 2: Convert to fraction form
    20,401.56/30,709.89 = 17,394.84/x
  3. Step 3: Cross multiply
    20,401.56x = 30,709.89 × 17,394.84
  4. Step 4: Simplify right side
    20,401.56x = 534,193,622.97
  5. Step 5: Solve for x
    x = 534,193,622.97/20,401.56
  6. Step 6: Final answer
    x = 26,183.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.