Home / 28,749.09-39,676.86-16,816.44

Finding the Fourth Proportional to 28,749.09, 39,676.86 and 16,816.44

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Solution

The fourth proportional to 28,749.09, 39,676.86 and 16,816.44 is: 23,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.09 : 39,676.86 = 16,816.44 : x
  2. Step 2: Convert to fraction form
    28,749.09/39,676.86 = 16,816.44/x
  3. Step 3: Cross multiply
    28,749.09x = 39,676.86 × 16,816.44
  4. Step 4: Simplify right side
    28,749.09x = 667,223,535.58
  5. Step 5: Solve for x
    x = 667,223,535.58/28,749.09
  6. Step 6: Final answer
    x = 23,208.51

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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.