Home / 31,076.10-42,885.09-16,928.64

Finding the Fourth Proportional to 31,076.10, 42,885.09 and 16,928.64

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Solution

The fourth proportional to 31,076.10, 42,885.09 and 16,928.64 is: 23,361.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076.10 : 42,885.09 = 16,928.64 : x
  2. Step 2: Convert to fraction form
    31,076.10/42,885.09 = 16,928.64/x
  3. Step 3: Cross multiply
    31,076.10x = 42,885.09 × 16,928.64
  4. Step 4: Simplify right side
    31,076.10x = 725,986,249.98
  5. Step 5: Solve for x
    x = 725,986,249.98/31,076.10
  6. Step 6: Final answer
    x = 23,361.56

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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.