Home / 28,083.72-38,755.23-15,336.87

Finding the Fourth Proportional to 28,083.72, 38,755.23 and 15,336.87

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Solution

The fourth proportional to 28,083.72, 38,755.23 and 15,336.87 is: 21,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.72 : 38,755.23 = 15,336.87 : x
  2. Step 2: Convert to fraction form
    28,083.72/38,755.23 = 15,336.87/x
  3. Step 3: Cross multiply
    28,083.72x = 38,755.23 × 15,336.87
  4. Step 4: Simplify right side
    28,083.72x = 594,383,924.33
  5. Step 5: Solve for x
    x = 594,383,924.33/28,083.72
  6. Step 6: Final answer
    x = 21,164.71

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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.