Home / 21,015.59-29,001.92-11,584.22

Finding the Fourth Proportional to 21,015.59, 29,001.92 and 11,584.22

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Solution

The fourth proportional to 21,015.59, 29,001.92 and 11,584.22 is: 15,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.59 : 29,001.92 = 11,584.22 : x
  2. Step 2: Convert to fraction form
    21,015.59/29,001.92 = 11,584.22/x
  3. Step 3: Cross multiply
    21,015.59x = 29,001.92 × 11,584.22
  4. Step 4: Simplify right side
    21,015.59x = 335,964,418.77
  5. Step 5: Solve for x
    x = 335,964,418.77/21,015.59
  6. Step 6: Final answer
    x = 15,986.44

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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.