Home / 28,939.14-39,940.90-16,846.65

Finding the Fourth Proportional to 28,939.14, 39,940.90 and 16,846.65

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Solution

The fourth proportional to 28,939.14, 39,940.90 and 16,846.65 is: 23,251.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.14 : 39,940.90 = 16,846.65 : x
  2. Step 2: Convert to fraction form
    28,939.14/39,940.90 = 16,846.65/x
  3. Step 3: Cross multiply
    28,939.14x = 39,940.90 × 16,846.65
  4. Step 4: Simplify right side
    28,939.14x = 672,870,320.87
  5. Step 5: Solve for x
    x = 672,870,320.87/28,939.14
  6. Step 6: Final answer
    x = 23,251.22

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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.