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Finding the Fourth Proportional to 28,604.85, 42,907.67 and 8,882.16

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Solution

The fourth proportional to 28,604.85, 42,907.67 and 8,882.16 is: 13,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.85 : 42,907.67 = 8,882.16 : x
  2. Step 2: Convert to fraction form
    28,604.85/42,907.67 = 8,882.16/x
  3. Step 3: Cross multiply
    28,604.85x = 42,907.67 × 8,882.16
  4. Step 4: Simplify right side
    28,604.85x = 381,112,668.12
  5. Step 5: Solve for x
    x = 381,112,668.12/28,604.85
  6. Step 6: Final answer
    x = 13,323.36

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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.