Home / 28,076.80-38,732.01-16,738.31

Finding the Fourth Proportional to 28,076.80, 38,732.01 and 16,738.31

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Solution

The fourth proportional to 28,076.80, 38,732.01 and 16,738.31 is: 23,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.80 : 38,732.01 = 16,738.31 : x
  2. Step 2: Convert to fraction form
    28,076.80/38,732.01 = 16,738.31/x
  3. Step 3: Cross multiply
    28,076.80x = 38,732.01 × 16,738.31
  4. Step 4: Simplify right side
    28,076.80x = 648,308,390.30
  5. Step 5: Solve for x
    x = 648,308,390.30/28,076.80
  6. Step 6: Final answer
    x = 23,090.54

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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.