Home / 31,804.92-47,698.20-12,829.56

Finding the Fourth Proportional to 31,804.92, 47,698.20 and 12,829.56

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Solution

The fourth proportional to 31,804.92, 47,698.20 and 12,829.56 is: 19,240.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,804.92 : 47,698.20 = 12,829.56 : x
  2. Step 2: Convert to fraction form
    31,804.92/47,698.20 = 12,829.56/x
  3. Step 3: Cross multiply
    31,804.92x = 47,698.20 × 12,829.56
  4. Step 4: Simplify right side
    31,804.92x = 611,946,918.79
  5. Step 5: Solve for x
    x = 611,946,918.79/31,804.92
  6. Step 6: Final answer
    x = 19,240.64

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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.