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Finding the Third Proportional to 18,258 and 27,490

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Solution

The third proportional to 18,258 and 27,490 is: 41,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258 : 27,490 = 27,490 : x
  2. Step 2: Convert to fraction form
    18,258/27,490 = 27,490/x
  3. Step 3: Cross multiply
    18,258x = 27,490 × 27,490
  4. Step 4: Simplify right side
    18,258x = 755,700,100
  5. Step 5: Solve for x
    x = 755,700,100/18,258
  6. Step 6: Final answer
    x = 41,390.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.