Home / 21,550.38-32,318.25-8,406.54

Finding the Fourth Proportional to 21,550.38, 32,318.25 and 8,406.54

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Solution

The fourth proportional to 21,550.38, 32,318.25 and 8,406.54 is: 12,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.38 : 32,318.25 = 8,406.54 : x
  2. Step 2: Convert to fraction form
    21,550.38/32,318.25 = 8,406.54/x
  3. Step 3: Cross multiply
    21,550.38x = 32,318.25 × 8,406.54
  4. Step 4: Simplify right side
    21,550.38x = 271,684,661.36
  5. Step 5: Solve for x
    x = 271,684,661.36/21,550.38
  6. Step 6: Final answer
    x = 12,606.95

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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.