Home / 31,076.05-42,884.96-16,928.89

Finding the Fourth Proportional to 31,076.05, 42,884.96 and 16,928.89

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Solution

The fourth proportional to 31,076.05, 42,884.96 and 16,928.89 is: 23,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076.05 : 42,884.96 = 16,928.89 : x
  2. Step 2: Convert to fraction form
    31,076.05/42,884.96 = 16,928.89/x
  3. Step 3: Cross multiply
    31,076.05x = 42,884.96 × 16,928.89
  4. Step 4: Simplify right side
    31,076.05x = 725,994,578.64
  5. Step 5: Solve for x
    x = 725,994,578.64/31,076.05
  6. Step 6: Final answer
    x = 23,361.87

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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.