Home / 21,676.09-29,915.44-12,245.26

Finding the Fourth Proportional to 21,676.09, 29,915.44 and 12,245.26

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Solution

The fourth proportional to 21,676.09, 29,915.44 and 12,245.26 is: 16,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,676.09 : 29,915.44 = 12,245.26 : x
  2. Step 2: Convert to fraction form
    21,676.09/29,915.44 = 12,245.26/x
  3. Step 3: Cross multiply
    21,676.09x = 29,915.44 × 12,245.26
  4. Step 4: Simplify right side
    21,676.09x = 366,322,340.81
  5. Step 5: Solve for x
    x = 366,322,340.81/21,676.09
  6. Step 6: Final answer
    x = 16,899.83

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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.