Home / 21,535.31-29,717.24-11,974.44

Finding the Fourth Proportional to 21,535.31, 29,717.24 and 11,974.44

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Solution

The fourth proportional to 21,535.31, 29,717.24 and 11,974.44 is: 16,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,535.31 : 29,717.24 = 11,974.44 : x
  2. Step 2: Convert to fraction form
    21,535.31/29,717.24 = 11,974.44/x
  3. Step 3: Cross multiply
    21,535.31x = 29,717.24 × 11,974.44
  4. Step 4: Simplify right side
    21,535.31x = 355,847,307.35
  5. Step 5: Solve for x
    x = 355,847,307.35/21,535.31
  6. Step 6: Final answer
    x = 16,523.90

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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.