Home / 20,132.25-30,203.73-6,984.60

Finding the Fourth Proportional to 20,132.25, 30,203.73 and 6,984.60

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Solution

The fourth proportional to 20,132.25, 30,203.73 and 6,984.60 is: 10,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.25 : 30,203.73 = 6,984.60 : x
  2. Step 2: Convert to fraction form
    20,132.25/30,203.73 = 6,984.60/x
  3. Step 3: Cross multiply
    20,132.25x = 30,203.73 × 6,984.60
  4. Step 4: Simplify right side
    20,132.25x = 210,960,972.56
  5. Step 5: Solve for x
    x = 210,960,972.56/20,132.25
  6. Step 6: Final answer
    x = 10,478.76

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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.