Home / 21,682.26-29,921.13-12,250.62

Finding the Fourth Proportional to 21,682.26, 29,921.13 and 12,250.62

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Solution

The fourth proportional to 21,682.26, 29,921.13 and 12,250.62 is: 16,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.26 : 29,921.13 = 12,250.62 : x
  2. Step 2: Convert to fraction form
    21,682.26/29,921.13 = 12,250.62/x
  3. Step 3: Cross multiply
    21,682.26x = 29,921.13 × 12,250.62
  4. Step 4: Simplify right side
    21,682.26x = 366,552,393.60
  5. Step 5: Solve for x
    x = 366,552,393.60/21,682.26
  6. Step 6: Final answer
    x = 16,905.64

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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.