Home / 21,682.34-29,921.62-11,746.34

Finding the Fourth Proportional to 21,682.34, 29,921.62 and 11,746.34

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Solution

The fourth proportional to 21,682.34, 29,921.62 and 11,746.34 is: 16,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.34 : 29,921.62 = 11,746.34 : x
  2. Step 2: Convert to fraction form
    21,682.34/29,921.62 = 11,746.34/x
  3. Step 3: Cross multiply
    21,682.34x = 29,921.62 × 11,746.34
  4. Step 4: Simplify right side
    21,682.34x = 351,469,521.87
  5. Step 5: Solve for x
    x = 351,469,521.87/21,682.34
  6. Step 6: Final answer
    x = 16,209.94

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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.