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Finding the Third Proportional to 21,998 and 53,173

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Solution

The third proportional to 21,998 and 53,173 is: 128,528.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998 : 53,173 = 53,173 : x
  2. Step 2: Convert to fraction form
    21,998/53,173 = 53,173/x
  3. Step 3: Cross multiply
    21,998x = 53,173 × 53,173
  4. Step 4: Simplify right side
    21,998x = 2,827,367,929
  5. Step 5: Solve for x
    x = 2,827,367,929/21,998
  6. Step 6: Final answer
    x = 128,528.41

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.