Home / 31,329.71-43,228.22-19,847.96

Finding the Fourth Proportional to 31,329.71, 43,228.22 and 19,847.96

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Solution

The fourth proportional to 31,329.71, 43,228.22 and 19,847.96 is: 27,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.71 : 43,228.22 = 19,847.96 : x
  2. Step 2: Convert to fraction form
    31,329.71/43,228.22 = 19,847.96/x
  3. Step 3: Cross multiply
    31,329.71x = 43,228.22 × 19,847.96
  4. Step 4: Simplify right side
    31,329.71x = 857,991,922.98
  5. Step 5: Solve for x
    x = 857,991,922.98/31,329.71
  6. Step 6: Final answer
    x = 27,385.89

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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.