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Finding the Third Proportional to 15,125.06 and 21,152.81

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Solution

The third proportional to 15,125.06 and 21,152.81 is: 29,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.06 : 21,152.81 = 21,152.81 : x
  2. Step 2: Convert to fraction form
    15,125.06/21,152.81 = 21,152.81/x
  3. Step 3: Cross multiply
    15,125.06x = 21,152.81 × 21,152.81
  4. Step 4: Simplify right side
    15,125.06x = 447,441,476.66
  5. Step 5: Solve for x
    x = 447,441,476.66/15,125.06
  6. Step 6: Final answer
    x = 29,582.79

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.