Home / 16,821.12-25,231.68-5,727.84

Finding the Fourth Proportional to 16,821.12, 25,231.68 and 5,727.84

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Solution

The fourth proportional to 16,821.12, 25,231.68 and 5,727.84 is: 8,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.12 : 25,231.68 = 5,727.84 : x
  2. Step 2: Convert to fraction form
    16,821.12/25,231.68 = 5,727.84/x
  3. Step 3: Cross multiply
    16,821.12x = 25,231.68 × 5,727.84
  4. Step 4: Simplify right side
    16,821.12x = 144,523,025.97
  5. Step 5: Solve for x
    x = 144,523,025.97/16,821.12
  6. Step 6: Final answer
    x = 8,591.76

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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.