Home / 21,630.58-29,855.61-12,204.61

Finding the Fourth Proportional to 21,630.58, 29,855.61 and 12,204.61

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Solution

The fourth proportional to 21,630.58, 29,855.61 and 12,204.61 is: 16,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.58 : 29,855.61 = 12,204.61 : x
  2. Step 2: Convert to fraction form
    21,630.58/29,855.61 = 12,204.61/x
  3. Step 3: Cross multiply
    21,630.58x = 29,855.61 × 12,204.61
  4. Step 4: Simplify right side
    21,630.58x = 364,376,076.36
  5. Step 5: Solve for x
    x = 364,376,076.36/21,630.58
  6. Step 6: Final answer
    x = 16,845.41

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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.