Home / 31,431.22-43,376.26-18,853.54

Finding the Fourth Proportional to 31,431.22, 43,376.26 and 18,853.54

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Solution

The fourth proportional to 31,431.22, 43,376.26 and 18,853.54 is: 26,018.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.22 : 43,376.26 = 18,853.54 : x
  2. Step 2: Convert to fraction form
    31,431.22/43,376.26 = 18,853.54/x
  3. Step 3: Cross multiply
    31,431.22x = 43,376.26 × 18,853.54
  4. Step 4: Simplify right side
    31,431.22x = 817,796,052.96
  5. Step 5: Solve for x
    x = 817,796,052.96/31,431.22
  6. Step 6: Final answer
    x = 26,018.59

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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.