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Finding the Third Proportional to 15,999.75 and 35,178.75

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Solution

The third proportional to 15,999.75 and 35,178.75 is: 77,347.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.75 : 35,178.75 = 35,178.75 : x
  2. Step 2: Convert to fraction form
    15,999.75/35,178.75 = 35,178.75/x
  3. Step 3: Cross multiply
    15,999.75x = 35,178.75 × 35,178.75
  4. Step 4: Simplify right side
    15,999.75x = 1,237,544,451.56
  5. Step 5: Solve for x
    x = 1,237,544,451.56/15,999.75
  6. Step 6: Final answer
    x = 77,347.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.