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Finding the Third Proportional to 18,612 and 28,460.25

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Solution

The third proportional to 18,612 and 28,460.25 is: 43,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612 : 28,460.25 = 28,460.25 : x
  2. Step 2: Convert to fraction form
    18,612/28,460.25 = 28,460.25/x
  3. Step 3: Cross multiply
    18,612x = 28,460.25 × 28,460.25
  4. Step 4: Simplify right side
    18,612x = 809,985,830.06
  5. Step 5: Solve for x
    x = 809,985,830.06/18,612
  6. Step 6: Final answer
    x = 43,519.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.