Home / 20,148.04-30,212.70-6,996.52

Finding the Fourth Proportional to 20,148.04, 30,212.70 and 6,996.52

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Solution

The fourth proportional to 20,148.04, 30,212.70 and 6,996.52 is: 10,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.04 : 30,212.70 = 6,996.52 : x
  2. Step 2: Convert to fraction form
    20,148.04/30,212.70 = 6,996.52/x
  3. Step 3: Cross multiply
    20,148.04x = 30,212.70 × 6,996.52
  4. Step 4: Simplify right side
    20,148.04x = 211,383,759.80
  5. Step 5: Solve for x
    x = 211,383,759.80/20,148.04
  6. Step 6: Final answer
    x = 10,491.53

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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.