Home / 21,249.41-29,323.42-11,817.77

Finding the Fourth Proportional to 21,249.41, 29,323.42 and 11,817.77

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Solution

The fourth proportional to 21,249.41, 29,323.42 and 11,817.77 is: 16,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.41 : 29,323.42 = 11,817.77 : x
  2. Step 2: Convert to fraction form
    21,249.41/29,323.42 = 11,817.77/x
  3. Step 3: Cross multiply
    21,249.41x = 29,323.42 × 11,817.77
  4. Step 4: Simplify right side
    21,249.41x = 346,537,257.01
  5. Step 5: Solve for x
    x = 346,537,257.01/21,249.41
  6. Step 6: Final answer
    x = 16,308.09

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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.