Home / 20,082.33-30,129.57-6,936.03

Finding the Fourth Proportional to 20,082.33, 30,129.57 and 6,936.03

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Solution

The fourth proportional to 20,082.33, 30,129.57 and 6,936.03 is: 10,406.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.33 : 30,129.57 = 6,936.03 : x
  2. Step 2: Convert to fraction form
    20,082.33/30,129.57 = 6,936.03/x
  3. Step 3: Cross multiply
    20,082.33x = 30,129.57 × 6,936.03
  4. Step 4: Simplify right side
    20,082.33x = 208,979,601.41
  5. Step 5: Solve for x
    x = 208,979,601.41/20,082.33
  6. Step 6: Final answer
    x = 10,406.14

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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.