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Finding the Fourth Proportional to 27,024, 40,556.88 and 18,762

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Solution

The fourth proportional to 27,024, 40,556.88 and 18,762 is: 28,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,024 : 40,556.88 = 18,762 : x
  2. Step 2: Convert to fraction form
    27,024/40,556.88 = 18,762/x
  3. Step 3: Cross multiply
    27,024x = 40,556.88 × 18,762
  4. Step 4: Simplify right side
    27,024x = 760,928,182.56
  5. Step 5: Solve for x
    x = 760,928,182.56/27,024
  6. Step 6: Final answer
    x = 28,157.50

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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.