Home / 21,015.76-29,001.84-11,584.12

Finding the Fourth Proportional to 21,015.76, 29,001.84 and 11,584.12

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Solution

The fourth proportional to 21,015.76, 29,001.84 and 11,584.12 is: 15,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.76 : 29,001.84 = 11,584.12 : x
  2. Step 2: Convert to fraction form
    21,015.76/29,001.84 = 11,584.12/x
  3. Step 3: Cross multiply
    21,015.76x = 29,001.84 × 11,584.12
  4. Step 4: Simplify right side
    21,015.76x = 335,960,794.78
  5. Step 5: Solve for x
    x = 335,960,794.78/21,015.76
  6. Step 6: Final answer
    x = 15,986.14

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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.