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Finding the Fourth Proportional to 21,936.84, 32,858.04 and 12,550.50

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Solution

The fourth proportional to 21,936.84, 32,858.04 and 12,550.50 is: 18,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.84 : 32,858.04 = 12,550.50 : x
  2. Step 2: Convert to fraction form
    21,936.84/32,858.04 = 12,550.50/x
  3. Step 3: Cross multiply
    21,936.84x = 32,858.04 × 12,550.50
  4. Step 4: Simplify right side
    21,936.84x = 412,384,831.02
  5. Step 5: Solve for x
    x = 412,384,831.02/21,936.84
  6. Step 6: Final answer
    x = 18,798.73

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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.