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Finding the Third Proportional to 18,915.19 and 27,825.19

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Solution

The third proportional to 18,915.19 and 27,825.19 is: 40,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915.19 : 27,825.19 = 27,825.19 : x
  2. Step 2: Convert to fraction form
    18,915.19/27,825.19 = 27,825.19/x
  3. Step 3: Cross multiply
    18,915.19x = 27,825.19 × 27,825.19
  4. Step 4: Simplify right side
    18,915.19x = 774,241,059.41
  5. Step 5: Solve for x
    x = 774,241,059.41/18,915.19
  6. Step 6: Final answer
    x = 40,932.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.