Home / 21,282.09-29,367.41-12,326.73

Finding the Fourth Proportional to 21,282.09, 29,367.41 and 12,326.73

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Solution

The fourth proportional to 21,282.09, 29,367.41 and 12,326.73 is: 17,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.09 : 29,367.41 = 12,326.73 : x
  2. Step 2: Convert to fraction form
    21,282.09/29,367.41 = 12,326.73/x
  3. Step 3: Cross multiply
    21,282.09x = 29,367.41 × 12,326.73
  4. Step 4: Simplify right side
    21,282.09x = 362,004,072.24
  5. Step 5: Solve for x
    x = 362,004,072.24/21,282.09
  6. Step 6: Final answer
    x = 17,009.80

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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.