Home / 31,252.72-43,128.86-16,912.55

Finding the Fourth Proportional to 31,252.72, 43,128.86 and 16,912.55

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Solution

The fourth proportional to 31,252.72, 43,128.86 and 16,912.55 is: 23,339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,252.72 : 43,128.86 = 16,912.55 : x
  2. Step 2: Convert to fraction form
    31,252.72/43,128.86 = 16,912.55/x
  3. Step 3: Cross multiply
    31,252.72x = 43,128.86 × 16,912.55
  4. Step 4: Simplify right side
    31,252.72x = 729,419,001.19
  5. Step 5: Solve for x
    x = 729,419,001.19/31,252.72
  6. Step 6: Final answer
    x = 23,339.38

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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.