Home / 21,844.72-30,137.16-13,446.64

Finding the Fourth Proportional to 21,844.72, 30,137.16 and 13,446.64

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Solution

The fourth proportional to 21,844.72, 30,137.16 and 13,446.64 is: 18,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,844.72 : 30,137.16 = 13,446.64 : x
  2. Step 2: Convert to fraction form
    21,844.72/30,137.16 = 13,446.64/x
  3. Step 3: Cross multiply
    21,844.72x = 30,137.16 × 13,446.64
  4. Step 4: Simplify right side
    21,844.72x = 405,243,541.14
  5. Step 5: Solve for x
    x = 405,243,541.14/21,844.72
  6. Step 6: Final answer
    x = 18,551.10

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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.