Home / 28,877.14-39,850.32-16,940.80

Finding the Fourth Proportional to 28,877.14, 39,850.32 and 16,940.80

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Solution

The fourth proportional to 28,877.14, 39,850.32 and 16,940.80 is: 23,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.14 : 39,850.32 = 16,940.80 : x
  2. Step 2: Convert to fraction form
    28,877.14/39,850.32 = 16,940.80/x
  3. Step 3: Cross multiply
    28,877.14x = 39,850.32 × 16,940.80
  4. Step 4: Simplify right side
    28,877.14x = 675,096,301.06
  5. Step 5: Solve for x
    x = 675,096,301.06/28,877.14
  6. Step 6: Final answer
    x = 23,378.23

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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.