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Finding the Third Proportional to 21,585 and 46,170

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Solution

The third proportional to 21,585 and 46,170 is: 98,756.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585 : 46,170 = 46,170 : x
  2. Step 2: Convert to fraction form
    21,585/46,170 = 46,170/x
  3. Step 3: Cross multiply
    21,585x = 46,170 × 46,170
  4. Step 4: Simplify right side
    21,585x = 2,131,668,900
  5. Step 5: Solve for x
    x = 2,131,668,900/21,585
  6. Step 6: Final answer
    x = 98,756.96

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.