Home / 20,299.06-30,372.03-11,983.60

Finding the Fourth Proportional to 20,299.06, 30,372.03 and 11,983.60

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Solution

The fourth proportional to 20,299.06, 30,372.03 and 11,983.60 is: 17,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.06 : 30,372.03 = 11,983.60 : x
  2. Step 2: Convert to fraction form
    20,299.06/30,372.03 = 11,983.60/x
  3. Step 3: Cross multiply
    20,299.06x = 30,372.03 × 11,983.60
  4. Step 4: Simplify right side
    20,299.06x = 363,966,258.71
  5. Step 5: Solve for x
    x = 363,966,258.71/20,299.06
  6. Step 6: Final answer
    x = 17,930.20

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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.