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Finding the Fourth Proportional to 18,344.20, 27,467.70 and 14,456.20

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Solution

The fourth proportional to 18,344.20, 27,467.70 and 14,456.20 is: 21,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.20 : 27,467.70 = 14,456.20 : x
  2. Step 2: Convert to fraction form
    18,344.20/27,467.70 = 14,456.20/x
  3. Step 3: Cross multiply
    18,344.20x = 27,467.70 × 14,456.20
  4. Step 4: Simplify right side
    18,344.20x = 397,078,564.74
  5. Step 5: Solve for x
    x = 397,078,564.74/18,344.20
  6. Step 6: Final answer
    x = 21,646.00

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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.