Home / 28,324.36-39,088.46-16,391.44

Finding the Fourth Proportional to 28,324.36, 39,088.46 and 16,391.44

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Solution

The fourth proportional to 28,324.36, 39,088.46 and 16,391.44 is: 22,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.36 : 39,088.46 = 16,391.44 : x
  2. Step 2: Convert to fraction form
    28,324.36/39,088.46 = 16,391.44/x
  3. Step 3: Cross multiply
    28,324.36x = 39,088.46 × 16,391.44
  4. Step 4: Simplify right side
    28,324.36x = 640,716,146.78
  5. Step 5: Solve for x
    x = 640,716,146.78/28,324.36
  6. Step 6: Final answer
    x = 22,620.68

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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.