Home / 21,636.59-29,859.32-12,204.95

Finding the Fourth Proportional to 21,636.59, 29,859.32 and 12,204.95

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Solution

The fourth proportional to 21,636.59, 29,859.32 and 12,204.95 is: 16,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636.59 : 29,859.32 = 12,204.95 : x
  2. Step 2: Convert to fraction form
    21,636.59/29,859.32 = 12,204.95/x
  3. Step 3: Cross multiply
    21,636.59x = 29,859.32 × 12,204.95
  4. Step 4: Simplify right side
    21,636.59x = 364,431,297.31
  5. Step 5: Solve for x
    x = 364,431,297.31/21,636.59
  6. Step 6: Final answer
    x = 16,843.29

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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.