Home / 20,529.67-28,333.46-11,576.99

Finding the Fourth Proportional to 20,529.67, 28,333.46 and 11,576.99

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Solution

The fourth proportional to 20,529.67, 28,333.46 and 11,576.99 is: 15,977.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.67 : 28,333.46 = 11,576.99 : x
  2. Step 2: Convert to fraction form
    20,529.67/28,333.46 = 11,576.99/x
  3. Step 3: Cross multiply
    20,529.67x = 28,333.46 × 11,576.99
  4. Step 4: Simplify right side
    20,529.67x = 328,016,183.09
  5. Step 5: Solve for x
    x = 328,016,183.09/20,529.67
  6. Step 6: Final answer
    x = 15,977.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.