Home / 20,298.06-30,370.53-11,982.60

Finding the Fourth Proportional to 20,298.06, 30,370.53 and 11,982.60

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Solution

The fourth proportional to 20,298.06, 30,370.53 and 11,982.60 is: 17,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.06 : 30,370.53 = 11,982.60 : x
  2. Step 2: Convert to fraction form
    20,298.06/30,370.53 = 11,982.60/x
  3. Step 3: Cross multiply
    20,298.06x = 30,370.53 × 11,982.60
  4. Step 4: Simplify right side
    20,298.06x = 363,917,912.78
  5. Step 5: Solve for x
    x = 363,917,912.78/20,298.06
  6. Step 6: Final answer
    x = 17,928.70

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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.