Home / 31,481.12-43,439.36-17,867.05

Finding the Fourth Proportional to 31,481.12, 43,439.36 and 17,867.05

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Solution

The fourth proportional to 31,481.12, 43,439.36 and 17,867.05 is: 24,653.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.12 : 43,439.36 = 17,867.05 : x
  2. Step 2: Convert to fraction form
    31,481.12/43,439.36 = 17,867.05/x
  3. Step 3: Cross multiply
    31,481.12x = 43,439.36 × 17,867.05
  4. Step 4: Simplify right side
    31,481.12x = 776,133,019.15
  5. Step 5: Solve for x
    x = 776,133,019.15/31,481.12
  6. Step 6: Final answer
    x = 24,653.92

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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.