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Finding the Third Proportional to 18,889.45 and 28,070.30

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Solution

The third proportional to 18,889.45 and 28,070.30 is: 41,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.45 : 28,070.30 = 28,070.30 : x
  2. Step 2: Convert to fraction form
    18,889.45/28,070.30 = 28,070.30/x
  3. Step 3: Cross multiply
    18,889.45x = 28,070.30 × 28,070.30
  4. Step 4: Simplify right side
    18,889.45x = 787,941,566.65
  5. Step 5: Solve for x
    x = 787,941,566.65/18,889.45
  6. Step 6: Final answer
    x = 41,713.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.