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Finding the Third Proportional to 19,230 and 28,115

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Solution

The third proportional to 19,230 and 28,115 is: 41,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230 : 28,115 = 28,115 : x
  2. Step 2: Convert to fraction form
    19,230/28,115 = 28,115/x
  3. Step 3: Cross multiply
    19,230x = 28,115 × 28,115
  4. Step 4: Simplify right side
    19,230x = 790,453,225
  5. Step 5: Solve for x
    x = 790,453,225/19,230
  6. Step 6: Final answer
    x = 41,105.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.