Home / 28,394.37-39,183.69-15,648.72

Finding the Fourth Proportional to 28,394.37, 39,183.69 and 15,648.72

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Solution

The fourth proportional to 28,394.37, 39,183.69 and 15,648.72 is: 21,594.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,394.37 : 39,183.69 = 15,648.72 : x
  2. Step 2: Convert to fraction form
    28,394.37/39,183.69 = 15,648.72/x
  3. Step 3: Cross multiply
    28,394.37x = 39,183.69 × 15,648.72
  4. Step 4: Simplify right side
    28,394.37x = 613,174,593.38
  5. Step 5: Solve for x
    x = 613,174,593.38/28,394.37
  6. Step 6: Final answer
    x = 21,594.94

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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.