Home / 36,310.92-54,476.91-12,939.18

Finding the Fourth Proportional to 36,310.92, 54,476.91 and 12,939.18

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Solution

The fourth proportional to 36,310.92, 54,476.91 and 12,939.18 is: 19,412.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,310.92 : 54,476.91 = 12,939.18 : x
  2. Step 2: Convert to fraction form
    36,310.92/54,476.91 = 12,939.18/x
  3. Step 3: Cross multiply
    36,310.92x = 54,476.91 × 12,939.18
  4. Step 4: Simplify right side
    36,310.92x = 704,886,544.33
  5. Step 5: Solve for x
    x = 704,886,544.33/36,310.92
  6. Step 6: Final answer
    x = 19,412.52

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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.