Home / 20,082.62-27,712.98-11,130.03

Finding the Fourth Proportional to 20,082.62, 27,712.98 and 11,130.03

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Solution

The fourth proportional to 20,082.62, 27,712.98 and 11,130.03 is: 15,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.62 : 27,712.98 = 11,130.03 : x
  2. Step 2: Convert to fraction form
    20,082.62/27,712.98 = 11,130.03/x
  3. Step 3: Cross multiply
    20,082.62x = 27,712.98 × 11,130.03
  4. Step 4: Simplify right side
    20,082.62x = 308,446,298.79
  5. Step 5: Solve for x
    x = 308,446,298.79/20,082.62
  6. Step 6: Final answer
    x = 15,358.87

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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.