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Finding the Fourth Proportional to 22,075.60, 33,091.80 and 8,910.40

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Solution

The fourth proportional to 22,075.60, 33,091.80 and 8,910.40 is: 13,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,075.60 : 33,091.80 = 8,910.40 : x
  2. Step 2: Convert to fraction form
    22,075.60/33,091.80 = 8,910.40/x
  3. Step 3: Cross multiply
    22,075.60x = 33,091.80 × 8,910.40
  4. Step 4: Simplify right side
    22,075.60x = 294,861,174.72
  5. Step 5: Solve for x
    x = 294,861,174.72/22,075.60
  6. Step 6: Final answer
    x = 13,356.88

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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.