Home / 31,076.11-42,885.03-16,928.97

Finding the Fourth Proportional to 31,076.11, 42,885.03 and 16,928.97

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Solution

The fourth proportional to 31,076.11, 42,885.03 and 16,928.97 is: 23,361.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076.11 : 42,885.03 = 16,928.97 : x
  2. Step 2: Convert to fraction form
    31,076.11/42,885.03 = 16,928.97/x
  3. Step 3: Cross multiply
    31,076.11x = 42,885.03 × 16,928.97
  4. Step 4: Simplify right side
    31,076.11x = 725,999,386.32
  5. Step 5: Solve for x
    x = 725,999,386.32/31,076.11
  6. Step 6: Final answer
    x = 23,361.98

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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.