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Finding the Third Proportional to 18,369.28 and 28,271.53

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Solution

The third proportional to 18,369.28 and 28,271.53 is: 43,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.28 : 28,271.53 = 28,271.53 : x
  2. Step 2: Convert to fraction form
    18,369.28/28,271.53 = 28,271.53/x
  3. Step 3: Cross multiply
    18,369.28x = 28,271.53 × 28,271.53
  4. Step 4: Simplify right side
    18,369.28x = 799,279,479.22
  5. Step 5: Solve for x
    x = 799,279,479.22/18,369.28
  6. Step 6: Final answer
    x = 43,511.74

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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.