Home / 31,076.06-42,884.73-16,928.90

Finding the Fourth Proportional to 31,076.06, 42,884.73 and 16,928.90

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Solution

The fourth proportional to 31,076.06, 42,884.73 and 16,928.90 is: 23,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076.06 : 42,884.73 = 16,928.90 : x
  2. Step 2: Convert to fraction form
    31,076.06/42,884.73 = 16,928.90/x
  3. Step 3: Cross multiply
    31,076.06x = 42,884.73 × 16,928.90
  4. Step 4: Simplify right side
    31,076.06x = 725,991,305.70
  5. Step 5: Solve for x
    x = 725,991,305.70/31,076.06
  6. Step 6: Final answer
    x = 23,361.76

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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.