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Finding the Fourth Proportional to 22,238.08, 30,692.08 and 12,804.80

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Solution

The fourth proportional to 22,238.08, 30,692.08 and 12,804.80 is: 17,672.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,238.08 : 30,692.08 = 12,804.80 : x
  2. Step 2: Convert to fraction form
    22,238.08/30,692.08 = 12,804.80/x
  3. Step 3: Cross multiply
    22,238.08x = 30,692.08 × 12,804.80
  4. Step 4: Simplify right side
    22,238.08x = 393,005,945.98
  5. Step 5: Solve for x
    x = 393,005,945.98/22,238.08
  6. Step 6: Final answer
    x = 17,672.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.