Home / 21,015.94-29,003.07-11,584.48

Finding the Fourth Proportional to 21,015.94, 29,003.07 and 11,584.48

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Solution

The fourth proportional to 21,015.94, 29,003.07 and 11,584.48 is: 15,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.94 : 29,003.07 = 11,584.48 : x
  2. Step 2: Convert to fraction form
    21,015.94/29,003.07 = 11,584.48/x
  3. Step 3: Cross multiply
    21,015.94x = 29,003.07 × 11,584.48
  4. Step 4: Simplify right side
    21,015.94x = 335,985,484.35
  5. Step 5: Solve for x
    x = 335,985,484.35/21,015.94
  6. Step 6: Final answer
    x = 15,987.17

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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.