Home / 31,252.18-43,128.13-16,912.01

Finding the Fourth Proportional to 31,252.18, 43,128.13 and 16,912.01

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Solution

The fourth proportional to 31,252.18, 43,128.13 and 16,912.01 is: 23,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,252.18 : 43,128.13 = 16,912.01 : x
  2. Step 2: Convert to fraction form
    31,252.18/43,128.13 = 16,912.01/x
  3. Step 3: Cross multiply
    31,252.18x = 43,128.13 × 16,912.01
  4. Step 4: Simplify right side
    31,252.18x = 729,383,431.38
  5. Step 5: Solve for x
    x = 729,383,431.38/31,252.18
  6. Step 6: Final answer
    x = 23,338.64

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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.