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Finding the Third Proportional to 18,090 and 26,642.25

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Solution

The third proportional to 18,090 and 26,642.25 is: 39,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090 : 26,642.25 = 26,642.25 : x
  2. Step 2: Convert to fraction form
    18,090/26,642.25 = 26,642.25/x
  3. Step 3: Cross multiply
    18,090x = 26,642.25 × 26,642.25
  4. Step 4: Simplify right side
    18,090x = 709,809,485.06
  5. Step 5: Solve for x
    x = 709,809,485.06/18,090
  6. Step 6: Final answer
    x = 39,237.67

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.