Home / 31,540.68-43,533.72-18,963

Finding the Fourth Proportional to 31,540.68, 43,533.72 and 18,963

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Solution

The fourth proportional to 31,540.68, 43,533.72 and 18,963 is: 26,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.68 : 43,533.72 = 18,963 : x
  2. Step 2: Convert to fraction form
    31,540.68/43,533.72 = 18,963/x
  3. Step 3: Cross multiply
    31,540.68x = 43,533.72 × 18,963
  4. Step 4: Simplify right side
    31,540.68x = 825,529,932.36
  5. Step 5: Solve for x
    x = 825,529,932.36/31,540.68
  6. Step 6: Final answer
    x = 26,173.50

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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.