Home / 21,082.44-31,628.40-11,231.16

Finding the Fourth Proportional to 21,082.44, 31,628.40 and 11,231.16

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Solution

The fourth proportional to 21,082.44, 31,628.40 and 11,231.16 is: 16,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.44 : 31,628.40 = 11,231.16 : x
  2. Step 2: Convert to fraction form
    21,082.44/31,628.40 = 11,231.16/x
  3. Step 3: Cross multiply
    21,082.44x = 31,628.40 × 11,231.16
  4. Step 4: Simplify right side
    21,082.44x = 355,223,620.94
  5. Step 5: Solve for x
    x = 355,223,620.94/21,082.44
  6. Step 6: Final answer
    x = 16,849.27

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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.