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Finding the Third Proportional to 14,360 and 31,620

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Solution

The third proportional to 14,360 and 31,620 is: 69,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,360 : 31,620 = 31,620 : x
  2. Step 2: Convert to fraction form
    14,360/31,620 = 31,620/x
  3. Step 3: Cross multiply
    14,360x = 31,620 × 31,620
  4. Step 4: Simplify right side
    14,360x = 999,824,400
  5. Step 5: Solve for x
    x = 999,824,400/14,360
  6. Step 6: Final answer
    x = 69,625.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.