Home / 20,130.76-30,194.34-6,982.84

Finding the Fourth Proportional to 20,130.76, 30,194.34 and 6,982.84

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Solution

The fourth proportional to 20,130.76, 30,194.34 and 6,982.84 is: 10,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.76 : 30,194.34 = 6,982.84 : x
  2. Step 2: Convert to fraction form
    20,130.76/30,194.34 = 6,982.84/x
  3. Step 3: Cross multiply
    20,130.76x = 30,194.34 × 6,982.84
  4. Step 4: Simplify right side
    20,130.76x = 210,842,245.13
  5. Step 5: Solve for x
    x = 210,842,245.13/20,130.76
  6. Step 6: Final answer
    x = 10,473.64

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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.