Home / 21,160.39-29,201.71-11,599.64

Finding the Fourth Proportional to 21,160.39, 29,201.71 and 11,599.64

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Solution

The fourth proportional to 21,160.39, 29,201.71 and 11,599.64 is: 16,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.39 : 29,201.71 = 11,599.64 : x
  2. Step 2: Convert to fraction form
    21,160.39/29,201.71 = 11,599.64/x
  3. Step 3: Cross multiply
    21,160.39x = 29,201.71 × 11,599.64
  4. Step 4: Simplify right side
    21,160.39x = 338,729,323.38
  5. Step 5: Solve for x
    x = 338,729,323.38/21,160.39
  6. Step 6: Final answer
    x = 16,007.71

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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.