Home / 28,939.37-39,938.31-16,193.75

Finding the Fourth Proportional to 28,939.37, 39,938.31 and 16,193.75

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Solution

The fourth proportional to 28,939.37, 39,938.31 and 16,193.75 is: 22,348.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.37 : 39,938.31 = 16,193.75 : x
  2. Step 2: Convert to fraction form
    28,939.37/39,938.31 = 16,193.75/x
  3. Step 3: Cross multiply
    28,939.37x = 39,938.31 × 16,193.75
  4. Step 4: Simplify right side
    28,939.37x = 646,750,807.87
  5. Step 5: Solve for x
    x = 646,750,807.87/28,939.37
  6. Step 6: Final answer
    x = 22,348.48

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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.