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Finding the Third Proportional to 16,918.50 and 36,718.50

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Solution

The third proportional to 16,918.50 and 36,718.50 is: 79,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.50 : 36,718.50 = 36,718.50 : x
  2. Step 2: Convert to fraction form
    16,918.50/36,718.50 = 36,718.50/x
  3. Step 3: Cross multiply
    16,918.50x = 36,718.50 × 36,718.50
  4. Step 4: Simplify right side
    16,918.50x = 1,348,248,242.25
  5. Step 5: Solve for x
    x = 1,348,248,242.25/16,918.50
  6. Step 6: Final answer
    x = 79,690.77

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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.