Home / 20,146.92-30,220.35-5,355.84

Finding the Fourth Proportional to 20,146.92, 30,220.35 and 5,355.84

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Solution

The fourth proportional to 20,146.92, 30,220.35 and 5,355.84 is: 8,033.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.92 : 30,220.35 = 5,355.84 : x
  2. Step 2: Convert to fraction form
    20,146.92/30,220.35 = 5,355.84/x
  3. Step 3: Cross multiply
    20,146.92x = 30,220.35 × 5,355.84
  4. Step 4: Simplify right side
    20,146.92x = 161,855,359.34
  5. Step 5: Solve for x
    x = 161,855,359.34/20,146.92
  6. Step 6: Final answer
    x = 8,033.75

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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.