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Finding the Third Proportional to 18,408.94 and 28,312.03

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Solution

The third proportional to 18,408.94 and 28,312.03 is: 43,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.94 : 28,312.03 = 28,312.03 : x
  2. Step 2: Convert to fraction form
    18,408.94/28,312.03 = 28,312.03/x
  3. Step 3: Cross multiply
    18,408.94x = 28,312.03 × 28,312.03
  4. Step 4: Simplify right side
    18,408.94x = 801,571,113.50
  5. Step 5: Solve for x
    x = 801,571,113.50/18,408.94
  6. Step 6: Final answer
    x = 43,542.50

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.