Home / 21,893.22-30,212.73-12,461.58

Finding the Fourth Proportional to 21,893.22, 30,212.73 and 12,461.58

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Solution

The fourth proportional to 21,893.22, 30,212.73 and 12,461.58 is: 17,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.22 : 30,212.73 = 12,461.58 : x
  2. Step 2: Convert to fraction form
    21,893.22/30,212.73 = 12,461.58/x
  3. Step 3: Cross multiply
    21,893.22x = 30,212.73 × 12,461.58
  4. Step 4: Simplify right side
    21,893.22x = 376,498,351.91
  5. Step 5: Solve for x
    x = 376,498,351.91/21,893.22
  6. Step 6: Final answer
    x = 17,197.03

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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.