Home / 31,986.68-47,981.46-9,798.44

Finding the Fourth Proportional to 31,986.68, 47,981.46 and 9,798.44

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Solution

The fourth proportional to 31,986.68, 47,981.46 and 9,798.44 is: 14,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986.68 : 47,981.46 = 9,798.44 : x
  2. Step 2: Convert to fraction form
    31,986.68/47,981.46 = 9,798.44/x
  3. Step 3: Cross multiply
    31,986.68x = 47,981.46 × 9,798.44
  4. Step 4: Simplify right side
    31,986.68x = 470,143,456.92
  5. Step 5: Solve for x
    x = 470,143,456.92/31,986.68
  6. Step 6: Final answer
    x = 14,698.10

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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.