Home / 31,584.40-43,584.72-19,647.36

Finding the Fourth Proportional to 31,584.40, 43,584.72 and 19,647.36

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Solution

The fourth proportional to 31,584.40, 43,584.72 and 19,647.36 is: 27,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.40 : 43,584.72 = 19,647.36 : x
  2. Step 2: Convert to fraction form
    31,584.40/43,584.72 = 19,647.36/x
  3. Step 3: Cross multiply
    31,584.40x = 43,584.72 × 19,647.36
  4. Step 4: Simplify right side
    31,584.40x = 856,324,684.34
  5. Step 5: Solve for x
    x = 856,324,684.34/31,584.40
  6. Step 6: Final answer
    x = 27,112.27

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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.