Home / 21,092.81-29,107.15-11,532.44

Finding the Fourth Proportional to 21,092.81, 29,107.15 and 11,532.44

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Solution

The fourth proportional to 21,092.81, 29,107.15 and 11,532.44 is: 15,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.81 : 29,107.15 = 11,532.44 : x
  2. Step 2: Convert to fraction form
    21,092.81/29,107.15 = 11,532.44/x
  3. Step 3: Cross multiply
    21,092.81x = 29,107.15 × 11,532.44
  4. Step 4: Simplify right side
    21,092.81x = 335,676,504.88
  5. Step 5: Solve for x
    x = 335,676,504.88/21,092.81
  6. Step 6: Final answer
    x = 15,914.27

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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.