Home / 21,015.54-29,001.33-11,584.08

Finding the Fourth Proportional to 21,015.54, 29,001.33 and 11,584.08

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Solution

The fourth proportional to 21,015.54, 29,001.33 and 11,584.08 is: 15,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.54 : 29,001.33 = 11,584.08 : x
  2. Step 2: Convert to fraction form
    21,015.54/29,001.33 = 11,584.08/x
  3. Step 3: Cross multiply
    21,015.54x = 29,001.33 × 11,584.08
  4. Step 4: Simplify right side
    21,015.54x = 335,953,726.83
  5. Step 5: Solve for x
    x = 335,953,726.83/21,015.54
  6. Step 6: Final answer
    x = 15,985.97

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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.