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Finding the Third Proportional to 18,403.88 and 28,339.88

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Solution

The third proportional to 18,403.88 and 28,339.88 is: 43,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.88 : 28,339.88 = 28,339.88 : x
  2. Step 2: Convert to fraction form
    18,403.88/28,339.88 = 28,339.88/x
  3. Step 3: Cross multiply
    18,403.88x = 28,339.88 × 28,339.88
  4. Step 4: Simplify right side
    18,403.88x = 803,148,515.02
  5. Step 5: Solve for x
    x = 803,148,515.02/18,403.88
  6. Step 6: Final answer
    x = 43,640.19

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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.