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Finding the Third Proportional to 9,429 and 19,632.75

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Solution

The third proportional to 9,429 and 19,632.75 is: 40,878.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429 : 19,632.75 = 19,632.75 : x
  2. Step 2: Convert to fraction form
    9,429/19,632.75 = 19,632.75/x
  3. Step 3: Cross multiply
    9,429x = 19,632.75 × 19,632.75
  4. Step 4: Simplify right side
    9,429x = 385,444,872.56
  5. Step 5: Solve for x
    x = 385,444,872.56/9,429
  6. Step 6: Final answer
    x = 40,878.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.