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Finding the Third Proportional to 19,321.88 and 40,718.53

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Solution

The third proportional to 19,321.88 and 40,718.53 is: 85,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.88 : 40,718.53 = 40,718.53 : x
  2. Step 2: Convert to fraction form
    19,321.88/40,718.53 = 40,718.53/x
  3. Step 3: Cross multiply
    19,321.88x = 40,718.53 × 40,718.53
  4. Step 4: Simplify right side
    19,321.88x = 1,657,998,787.16
  5. Step 5: Solve for x
    x = 1,657,998,787.16/19,321.88
  6. Step 6: Final answer
    x = 85,809.41

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.