Home / 31,384.48-43,311.36-17,238.64

Finding the Fourth Proportional to 31,384.48, 43,311.36 and 17,238.64

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Solution

The fourth proportional to 31,384.48, 43,311.36 and 17,238.64 is: 23,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.48 : 43,311.36 = 17,238.64 : x
  2. Step 2: Convert to fraction form
    31,384.48/43,311.36 = 17,238.64/x
  3. Step 3: Cross multiply
    31,384.48x = 43,311.36 × 17,238.64
  4. Step 4: Simplify right side
    31,384.48x = 746,628,942.95
  5. Step 5: Solve for x
    x = 746,628,942.95/31,384.48
  6. Step 6: Final answer
    x = 23,789.75

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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.