Home / 20,230.43-30,348.73-5,440.50

Finding the Fourth Proportional to 20,230.43, 30,348.73 and 5,440.50

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Solution

The fourth proportional to 20,230.43, 30,348.73 and 5,440.50 is: 8,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.43 : 30,348.73 = 5,440.50 : x
  2. Step 2: Convert to fraction form
    20,230.43/30,348.73 = 5,440.50/x
  3. Step 3: Cross multiply
    20,230.43x = 30,348.73 × 5,440.50
  4. Step 4: Simplify right side
    20,230.43x = 165,112,369.80
  5. Step 5: Solve for x
    x = 165,112,369.80/20,230.43
  6. Step 6: Final answer
    x = 8,161.58

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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.