Home / 31,234.96-43,118.32-19,919.64

Finding the Fourth Proportional to 31,234.96, 43,118.32 and 19,919.64

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Solution

The fourth proportional to 31,234.96, 43,118.32 and 19,919.64 is: 27,498.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,234.96 : 43,118.32 = 19,919.64 : x
  2. Step 2: Convert to fraction form
    31,234.96/43,118.32 = 19,919.64/x
  3. Step 3: Cross multiply
    31,234.96x = 43,118.32 × 19,919.64
  4. Step 4: Simplify right side
    31,234.96x = 858,901,411.80
  5. Step 5: Solve for x
    x = 858,901,411.80/31,234.96
  6. Step 6: Final answer
    x = 27,498.08

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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.