Home / 21,249.44-29,324.40-11,817.80

Finding the Fourth Proportional to 21,249.44, 29,324.40 and 11,817.80

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Solution

The fourth proportional to 21,249.44, 29,324.40 and 11,817.80 is: 16,308.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.44 : 29,324.40 = 11,817.80 : x
  2. Step 2: Convert to fraction form
    21,249.44/29,324.40 = 11,817.80/x
  3. Step 3: Cross multiply
    21,249.44x = 29,324.40 × 11,817.80
  4. Step 4: Simplify right side
    21,249.44x = 346,549,894.32
  5. Step 5: Solve for x
    x = 346,549,894.32/21,249.44
  6. Step 6: Final answer
    x = 16,308.66

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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.