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Finding the Fourth Proportional to 28,324.13, 42,491.07 and 8,604.68

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Solution

The fourth proportional to 28,324.13, 42,491.07 and 8,604.68 is: 12,908.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.13 : 42,491.07 = 8,604.68 : x
  2. Step 2: Convert to fraction form
    28,324.13/42,491.07 = 8,604.68/x
  3. Step 3: Cross multiply
    28,324.13x = 42,491.07 × 8,604.68
  4. Step 4: Simplify right side
    28,324.13x = 365,621,847.75
  5. Step 5: Solve for x
    x = 365,621,847.75/28,324.13
  6. Step 6: Final answer
    x = 12,908.50

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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.