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Finding the Third Proportional to 15,223.50 and 20,904.75

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Solution

The third proportional to 15,223.50 and 20,904.75 is: 28,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.50 : 20,904.75 = 20,904.75 : x
  2. Step 2: Convert to fraction form
    15,223.50/20,904.75 = 20,904.75/x
  3. Step 3: Cross multiply
    15,223.50x = 20,904.75 × 20,904.75
  4. Step 4: Simplify right side
    15,223.50x = 437,008,572.56
  5. Step 5: Solve for x
    x = 437,008,572.56/15,223.50
  6. Step 6: Final answer
    x = 28,706.18

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.