Home / 31,232.96-43,115.56-19,917.64

Finding the Fourth Proportional to 31,232.96, 43,115.56 and 19,917.64

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Solution

The fourth proportional to 31,232.96, 43,115.56 and 19,917.64 is: 27,495.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,232.96 : 43,115.56 = 19,917.64 : x
  2. Step 2: Convert to fraction form
    31,232.96/43,115.56 = 19,917.64/x
  3. Step 3: Cross multiply
    31,232.96x = 43,115.56 × 19,917.64
  4. Step 4: Simplify right side
    31,232.96x = 858,760,202.48
  5. Step 5: Solve for x
    x = 858,760,202.48/31,232.96
  6. Step 6: Final answer
    x = 27,495.32

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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.