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Finding the Fourth Proportional to 18,225.22, 27,237.97 and 13,305.22

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Solution

The fourth proportional to 18,225.22, 27,237.97 and 13,305.22 is: 19,884.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.22 : 27,237.97 = 13,305.22 : x
  2. Step 2: Convert to fraction form
    18,225.22/27,237.97 = 13,305.22/x
  3. Step 3: Cross multiply
    18,225.22x = 27,237.97 × 13,305.22
  4. Step 4: Simplify right side
    18,225.22x = 362,407,183.20
  5. Step 5: Solve for x
    x = 362,407,183.20/18,225.22
  6. Step 6: Final answer
    x = 19,884.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.