Home / 21,067.29-29,071.85-11,635.65

Finding the Fourth Proportional to 21,067.29, 29,071.85 and 11,635.65

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Solution

The fourth proportional to 21,067.29, 29,071.85 and 11,635.65 is: 16,056.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.29 : 29,071.85 = 11,635.65 : x
  2. Step 2: Convert to fraction form
    21,067.29/29,071.85 = 11,635.65/x
  3. Step 3: Cross multiply
    21,067.29x = 29,071.85 × 11,635.65
  4. Step 4: Simplify right side
    21,067.29x = 338,269,813.27
  5. Step 5: Solve for x
    x = 338,269,813.27/21,067.29
  6. Step 6: Final answer
    x = 16,056.64

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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.