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Finding the Fourth Proportional to 27,203.78, 40,809.78 and 9,669.44

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Solution

The fourth proportional to 27,203.78, 40,809.78 and 9,669.44 is: 14,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,203.78 : 40,809.78 = 9,669.44 : x
  2. Step 2: Convert to fraction form
    27,203.78/40,809.78 = 9,669.44/x
  3. Step 3: Cross multiply
    27,203.78x = 40,809.78 × 9,669.44
  4. Step 4: Simplify right side
    27,203.78x = 394,607,719.12
  5. Step 5: Solve for x
    x = 394,607,719.12/27,203.78
  6. Step 6: Final answer
    x = 14,505.62

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1.5x scale

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.