Home / 20,433.84-30,650.70-5,440.96

Finding the Fourth Proportional to 20,433.84, 30,650.70 and 5,440.96

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Solution

The fourth proportional to 20,433.84, 30,650.70 and 5,440.96 is: 8,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.84 : 30,650.70 = 5,440.96 : x
  2. Step 2: Convert to fraction form
    20,433.84/30,650.70 = 5,440.96/x
  3. Step 3: Cross multiply
    20,433.84x = 30,650.70 × 5,440.96
  4. Step 4: Simplify right side
    20,433.84x = 166,769,232.67
  5. Step 5: Solve for x
    x = 166,769,232.67/20,433.84
  6. Step 6: Final answer
    x = 8,161.42

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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.