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Finding the Third Proportional to 18,488.25 and 28,211.63

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Solution

The third proportional to 18,488.25 and 28,211.63 is: 43,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.25 : 28,211.63 = 28,211.63 : x
  2. Step 2: Convert to fraction form
    18,488.25/28,211.63 = 28,211.63/x
  3. Step 3: Cross multiply
    18,488.25x = 28,211.63 × 28,211.63
  4. Step 4: Simplify right side
    18,488.25x = 795,895,785.14
  5. Step 5: Solve for x
    x = 795,895,785.14/18,488.25
  6. Step 6: Final answer
    x = 43,048.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.