Home / 21,082.84-29,093.52-11,651.20

Finding the Fourth Proportional to 21,082.84, 29,093.52 and 11,651.20

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Solution

The fourth proportional to 21,082.84, 29,093.52 and 11,651.20 is: 16,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.84 : 29,093.52 = 11,651.20 : x
  2. Step 2: Convert to fraction form
    21,082.84/29,093.52 = 11,651.20/x
  3. Step 3: Cross multiply
    21,082.84x = 29,093.52 × 11,651.20
  4. Step 4: Simplify right side
    21,082.84x = 338,974,420.22
  5. Step 5: Solve for x
    x = 338,974,420.22/21,082.84
  6. Step 6: Final answer
    x = 16,078.21

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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.