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Finding the Third Proportional to 21,830 and 46,844

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Solution

The third proportional to 21,830 and 46,844 is: 100,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,830 : 46,844 = 46,844 : x
  2. Step 2: Convert to fraction form
    21,830/46,844 = 46,844/x
  3. Step 3: Cross multiply
    21,830x = 46,844 × 46,844
  4. Step 4: Simplify right side
    21,830x = 2,194,360,336
  5. Step 5: Solve for x
    x = 2,194,360,336/21,830
  6. Step 6: Final answer
    x = 100,520.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.