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Finding the Third Proportional to 14,886 and 21,159

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Solution

The third proportional to 14,886 and 21,159 is: 30,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886 : 21,159 = 21,159 : x
  2. Step 2: Convert to fraction form
    14,886/21,159 = 21,159/x
  3. Step 3: Cross multiply
    14,886x = 21,159 × 21,159
  4. Step 4: Simplify right side
    14,886x = 447,703,281
  5. Step 5: Solve for x
    x = 447,703,281/14,886
  6. Step 6: Final answer
    x = 30,075.46

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.