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Finding the Fourth Proportional to 18,360, 27,537.12 and 15,259.92

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Solution

The fourth proportional to 18,360, 27,537.12 and 15,259.92 is: 22,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360 : 27,537.12 = 15,259.92 : x
  2. Step 2: Convert to fraction form
    18,360/27,537.12 = 15,259.92/x
  3. Step 3: Cross multiply
    18,360x = 27,537.12 × 15,259.92
  4. Step 4: Simplify right side
    18,360x = 420,214,248.23
  5. Step 5: Solve for x
    x = 420,214,248.23/18,360
  6. Step 6: Final answer
    x = 22,887.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.