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Finding the Fourth Proportional to 21,662.76, 32,515.86 and 14,620.44

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Solution

The fourth proportional to 21,662.76, 32,515.86 and 14,620.44 is: 21,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662.76 : 32,515.86 = 14,620.44 : x
  2. Step 2: Convert to fraction form
    21,662.76/32,515.86 = 14,620.44/x
  3. Step 3: Cross multiply
    21,662.76x = 32,515.86 × 14,620.44
  4. Step 4: Simplify right side
    21,662.76x = 475,396,180.18
  5. Step 5: Solve for x
    x = 475,396,180.18/21,662.76
  6. Step 6: Final answer
    x = 21,945.32

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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.