Home / 21,954.86-30,297.81-11,883.31

Finding the Fourth Proportional to 21,954.86, 30,297.81 and 11,883.31

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Solution

The fourth proportional to 21,954.86, 30,297.81 and 11,883.31 is: 16,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.86 : 30,297.81 = 11,883.31 : x
  2. Step 2: Convert to fraction form
    21,954.86/30,297.81 = 11,883.31/x
  3. Step 3: Cross multiply
    21,954.86x = 30,297.81 × 11,883.31
  4. Step 4: Simplify right side
    21,954.86x = 360,038,187.24
  5. Step 5: Solve for x
    x = 360,038,187.24/21,954.86
  6. Step 6: Final answer
    x = 16,399.02

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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.