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Finding the Third Proportional to 18,802.13 and 28,415.81

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Solution

The third proportional to 18,802.13 and 28,415.81 is: 42,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.13 : 28,415.81 = 28,415.81 : x
  2. Step 2: Convert to fraction form
    18,802.13/28,415.81 = 28,415.81/x
  3. Step 3: Cross multiply
    18,802.13x = 28,415.81 × 28,415.81
  4. Step 4: Simplify right side
    18,802.13x = 807,458,400.04
  5. Step 5: Solve for x
    x = 807,458,400.04/18,802.13
  6. Step 6: Final answer
    x = 42,945.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.