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Finding the Third Proportional to 21,289.08 and 30,549.66

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Solution

The third proportional to 21,289.08 and 30,549.66 is: 43,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289.08 : 30,549.66 = 30,549.66 : x
  2. Step 2: Convert to fraction form
    21,289.08/30,549.66 = 30,549.66/x
  3. Step 3: Cross multiply
    21,289.08x = 30,549.66 × 30,549.66
  4. Step 4: Simplify right side
    21,289.08x = 933,281,496.99
  5. Step 5: Solve for x
    x = 933,281,496.99/21,289.08
  6. Step 6: Final answer
    x = 43,838.51

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.