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Finding the Third Proportional to 18,983 and 30,501.50

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Solution

The third proportional to 18,983 and 30,501.50 is: 49,009.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983 : 30,501.50 = 30,501.50 : x
  2. Step 2: Convert to fraction form
    18,983/30,501.50 = 30,501.50/x
  3. Step 3: Cross multiply
    18,983x = 30,501.50 × 30,501.50
  4. Step 4: Simplify right side
    18,983x = 930,341,502.25
  5. Step 5: Solve for x
    x = 930,341,502.25/18,983
  6. Step 6: Final answer
    x = 49,009.19

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.