Home / 21,004.44-28,986.03-11,443.62

Finding the Fourth Proportional to 21,004.44, 28,986.03 and 11,443.62

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Solution

The fourth proportional to 21,004.44, 28,986.03 and 11,443.62 is: 15,792.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.44 : 28,986.03 = 11,443.62 : x
  2. Step 2: Convert to fraction form
    21,004.44/28,986.03 = 11,443.62/x
  3. Step 3: Cross multiply
    21,004.44x = 28,986.03 × 11,443.62
  4. Step 4: Simplify right side
    21,004.44x = 331,705,112.63
  5. Step 5: Solve for x
    x = 331,705,112.63/21,004.44
  6. Step 6: Final answer
    x = 15,792.14

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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.