Home / 21,082.24-31,623.36-7,231.36

Finding the Fourth Proportional to 21,082.24, 31,623.36 and 7,231.36

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Solution

The fourth proportional to 21,082.24, 31,623.36 and 7,231.36 is: 10,847.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.24 : 31,623.36 = 7,231.36 : x
  2. Step 2: Convert to fraction form
    21,082.24/31,623.36 = 7,231.36/x
  3. Step 3: Cross multiply
    21,082.24x = 31,623.36 × 7,231.36
  4. Step 4: Simplify right side
    21,082.24x = 228,679,900.57
  5. Step 5: Solve for x
    x = 228,679,900.57/21,082.24
  6. Step 6: Final answer
    x = 10,847.04

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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.