Home / 20,201.90-30,304.20-6,874.70

Finding the Fourth Proportional to 20,201.90, 30,304.20 and 6,874.70

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Solution

The fourth proportional to 20,201.90, 30,304.20 and 6,874.70 is: 10,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.90 : 30,304.20 = 6,874.70 : x
  2. Step 2: Convert to fraction form
    20,201.90/30,304.20 = 6,874.70/x
  3. Step 3: Cross multiply
    20,201.90x = 30,304.20 × 6,874.70
  4. Step 4: Simplify right side
    20,201.90x = 208,332,283.74
  5. Step 5: Solve for x
    x = 208,332,283.74/20,201.90
  6. Step 6: Final answer
    x = 10,312.51

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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.