Home / 31,305.07-43,201.38-17,157.88

Finding the Fourth Proportional to 31,305.07, 43,201.38 and 17,157.88

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Solution

The fourth proportional to 31,305.07, 43,201.38 and 17,157.88 is: 23,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.07 : 43,201.38 = 17,157.88 : x
  2. Step 2: Convert to fraction form
    31,305.07/43,201.38 = 17,157.88/x
  3. Step 3: Cross multiply
    31,305.07x = 43,201.38 × 17,157.88
  4. Step 4: Simplify right side
    31,305.07x = 741,244,093.87
  5. Step 5: Solve for x
    x = 741,244,093.87/31,305.07
  6. Step 6: Final answer
    x = 23,678.08

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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.