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Finding the Third Proportional to 18,840.94 and 28,503.56

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Solution

The third proportional to 18,840.94 and 28,503.56 is: 43,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.94 : 28,503.56 = 28,503.56 : x
  2. Step 2: Convert to fraction form
    18,840.94/28,503.56 = 28,503.56/x
  3. Step 3: Cross multiply
    18,840.94x = 28,503.56 × 28,503.56
  4. Step 4: Simplify right side
    18,840.94x = 812,453,075.19
  5. Step 5: Solve for x
    x = 812,453,075.19/18,840.94
  6. Step 6: Final answer
    x = 43,121.69

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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.