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Finding the Third Proportional to 18,220 and 28,886

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Solution

The third proportional to 18,220 and 28,886 is: 45,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220 : 28,886 = 28,886 : x
  2. Step 2: Convert to fraction form
    18,220/28,886 = 28,886/x
  3. Step 3: Cross multiply
    18,220x = 28,886 × 28,886
  4. Step 4: Simplify right side
    18,220x = 834,400,996
  5. Step 5: Solve for x
    x = 834,400,996/18,220
  6. Step 6: Final answer
    x = 45,795.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.