Home / 21,623.80-29,841.06-12,676.60

Finding the Fourth Proportional to 21,623.80, 29,841.06 and 12,676.60

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Solution

The fourth proportional to 21,623.80, 29,841.06 and 12,676.60 is: 17,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.80 : 29,841.06 = 12,676.60 : x
  2. Step 2: Convert to fraction form
    21,623.80/29,841.06 = 12,676.60/x
  3. Step 3: Cross multiply
    21,623.80x = 29,841.06 × 12,676.60
  4. Step 4: Simplify right side
    21,623.80x = 378,283,181.20
  5. Step 5: Solve for x
    x = 378,283,181.20/21,623.80
  6. Step 6: Final answer
    x = 17,493.83

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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.