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Finding the Fourth Proportional to 18,336.20, 27,455.70 and 14,448.20

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Solution

The fourth proportional to 18,336.20, 27,455.70 and 14,448.20 is: 21,634.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.20 : 27,455.70 = 14,448.20 : x
  2. Step 2: Convert to fraction form
    18,336.20/27,455.70 = 14,448.20/x
  3. Step 3: Cross multiply
    18,336.20x = 27,455.70 × 14,448.20
  4. Step 4: Simplify right side
    18,336.20x = 396,685,444.74
  5. Step 5: Solve for x
    x = 396,685,444.74/18,336.20
  6. Step 6: Final answer
    x = 21,634.01

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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.