Home / 28,896.08-39,896.23-18,711.73

Finding the Fourth Proportional to 28,896.08, 39,896.23 and 18,711.73

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Solution

The fourth proportional to 28,896.08, 39,896.23 and 18,711.73 is: 25,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.08 : 39,896.23 = 18,711.73 : x
  2. Step 2: Convert to fraction form
    28,896.08/39,896.23 = 18,711.73/x
  3. Step 3: Cross multiply
    28,896.08x = 39,896.23 × 18,711.73
  4. Step 4: Simplify right side
    28,896.08x = 746,527,297.54
  5. Step 5: Solve for x
    x = 746,527,297.54/28,896.08
  6. Step 6: Final answer
    x = 25,834.90

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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.