Home / 19,321.75-28,971.96-5,991.06

Finding the Fourth Proportional to 19,321.75, 28,971.96 and 5,991.06

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Solution

The fourth proportional to 19,321.75, 28,971.96 and 5,991.06 is: 8,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.75 : 28,971.96 = 5,991.06 : x
  2. Step 2: Convert to fraction form
    19,321.75/28,971.96 = 5,991.06/x
  3. Step 3: Cross multiply
    19,321.75x = 28,971.96 × 5,991.06
  4. Step 4: Simplify right side
    19,321.75x = 173,572,750.68
  5. Step 5: Solve for x
    x = 173,572,750.68/19,321.75
  6. Step 6: Final answer
    x = 8,983.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.