Home / 31,882.14-43,999.47-21,289.50

Finding the Fourth Proportional to 31,882.14, 43,999.47 and 21,289.50

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Solution

The fourth proportional to 31,882.14, 43,999.47 and 21,289.50 is: 29,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,882.14 : 43,999.47 = 21,289.50 : x
  2. Step 2: Convert to fraction form
    31,882.14/43,999.47 = 21,289.50/x
  3. Step 3: Cross multiply
    31,882.14x = 43,999.47 × 21,289.50
  4. Step 4: Simplify right side
    31,882.14x = 936,726,716.57
  5. Step 5: Solve for x
    x = 936,726,716.57/31,882.14
  6. Step 6: Final answer
    x = 29,380.92

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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.