Home / 20,082.02-27,712.85-11,007.31

Finding the Fourth Proportional to 20,082.02, 27,712.85 and 11,007.31

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Solution

The fourth proportional to 20,082.02, 27,712.85 and 11,007.31 is: 15,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.02 : 27,712.85 = 11,007.31 : x
  2. Step 2: Convert to fraction form
    20,082.02/27,712.85 = 11,007.31/x
  3. Step 3: Cross multiply
    20,082.02x = 27,712.85 × 11,007.31
  4. Step 4: Simplify right side
    20,082.02x = 305,043,930.93
  5. Step 5: Solve for x
    x = 305,043,930.93/20,082.02
  6. Step 6: Final answer
    x = 15,189.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.