Home / 21,015.73-29,001.29-11,584.29

Finding the Fourth Proportional to 21,015.73, 29,001.29 and 11,584.29

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Solution

The fourth proportional to 21,015.73, 29,001.29 and 11,584.29 is: 15,986.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.73 : 29,001.29 = 11,584.29 : x
  2. Step 2: Convert to fraction form
    21,015.73/29,001.29 = 11,584.29/x
  3. Step 3: Cross multiply
    21,015.73x = 29,001.29 × 11,584.29
  4. Step 4: Simplify right side
    21,015.73x = 335,959,353.73
  5. Step 5: Solve for x
    x = 335,959,353.73/21,015.73
  6. Step 6: Final answer
    x = 15,986.09

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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.