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Finding the Third Proportional to 15,570 and 33,783

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Solution

The third proportional to 15,570 and 33,783 is: 73,300.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570 : 33,783 = 33,783 : x
  2. Step 2: Convert to fraction form
    15,570/33,783 = 33,783/x
  3. Step 3: Cross multiply
    15,570x = 33,783 × 33,783
  4. Step 4: Simplify right side
    15,570x = 1,141,291,089
  5. Step 5: Solve for x
    x = 1,141,291,089/15,570
  6. Step 6: Final answer
    x = 73,300.65

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.