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Finding the Third Proportional to 19,998 and 43,389

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Solution

The third proportional to 19,998 and 43,389 is: 94,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998 : 43,389 = 43,389 : x
  2. Step 2: Convert to fraction form
    19,998/43,389 = 43,389/x
  3. Step 3: Cross multiply
    19,998x = 43,389 × 43,389
  4. Step 4: Simplify right side
    19,998x = 1,882,605,321
  5. Step 5: Solve for x
    x = 1,882,605,321/19,998
  6. Step 6: Final answer
    x = 94,139.68

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1.5x scale

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.