Home / 31,174.36-43,020.52-18,432.12

Finding the Fourth Proportional to 31,174.36, 43,020.52 and 18,432.12

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Solution

The fourth proportional to 31,174.36, 43,020.52 and 18,432.12 is: 25,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,174.36 : 43,020.52 = 18,432.12 : x
  2. Step 2: Convert to fraction form
    31,174.36/43,020.52 = 18,432.12/x
  3. Step 3: Cross multiply
    31,174.36x = 43,020.52 × 18,432.12
  4. Step 4: Simplify right side
    31,174.36x = 792,959,387.10
  5. Step 5: Solve for x
    x = 792,959,387.10/31,174.36
  6. Step 6: Final answer
    x = 25,436.27

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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.