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Finding the Third Proportional to 18,572 and 28,783

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Solution

The third proportional to 18,572 and 28,783 is: 44,608.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572 : 28,783 = 28,783 : x
  2. Step 2: Convert to fraction form
    18,572/28,783 = 28,783/x
  3. Step 3: Cross multiply
    18,572x = 28,783 × 28,783
  4. Step 4: Simplify right side
    18,572x = 828,461,089
  5. Step 5: Solve for x
    x = 828,461,089/18,572
  6. Step 6: Final answer
    x = 44,608.07

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.