Home / 31,852.26-47,728.58-20,140.88

Finding the Fourth Proportional to 31,852.26, 47,728.58 and 20,140.88

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Solution

The fourth proportional to 31,852.26, 47,728.58 and 20,140.88 is: 30,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,852.26 : 47,728.58 = 20,140.88 : x
  2. Step 2: Convert to fraction form
    31,852.26/47,728.58 = 20,140.88/x
  3. Step 3: Cross multiply
    31,852.26x = 47,728.58 × 20,140.88
  4. Step 4: Simplify right side
    31,852.26x = 961,295,263.00
  5. Step 5: Solve for x
    x = 961,295,263.00/31,852.26
  6. Step 6: Final answer
    x = 30,179.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.