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Finding the Third Proportional to 18,354 and 27,915.38

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Solution

The third proportional to 18,354 and 27,915.38 is: 42,457.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354 : 27,915.38 = 27,915.38 : x
  2. Step 2: Convert to fraction form
    18,354/27,915.38 = 27,915.38/x
  3. Step 3: Cross multiply
    18,354x = 27,915.38 × 27,915.38
  4. Step 4: Simplify right side
    18,354x = 779,268,161.39
  5. Step 5: Solve for x
    x = 779,268,161.39/18,354
  6. Step 6: Final answer
    x = 42,457.67

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.