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Finding the Fourth Proportional to 18,000.40, 26,968.20 and 14,695.60

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Solution

The fourth proportional to 18,000.40, 26,968.20 and 14,695.60 is: 22,016.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.40 : 26,968.20 = 14,695.60 : x
  2. Step 2: Convert to fraction form
    18,000.40/26,968.20 = 14,695.60/x
  3. Step 3: Cross multiply
    18,000.40x = 26,968.20 × 14,695.60
  4. Step 4: Simplify right side
    18,000.40x = 396,313,879.92
  5. Step 5: Solve for x
    x = 396,313,879.92/18,000.40
  6. Step 6: Final answer
    x = 22,016.95

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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.