Home / 31,020.76-46,504.14-19,930.60

Finding the Fourth Proportional to 31,020.76, 46,504.14 and 19,930.60

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Solution

The fourth proportional to 31,020.76, 46,504.14 and 19,930.60 is: 29,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020.76 : 46,504.14 = 19,930.60 : x
  2. Step 2: Convert to fraction form
    31,020.76/46,504.14 = 19,930.60/x
  3. Step 3: Cross multiply
    31,020.76x = 46,504.14 × 19,930.60
  4. Step 4: Simplify right side
    31,020.76x = 926,855,412.68
  5. Step 5: Solve for x
    x = 926,855,412.68/31,020.76
  6. Step 6: Final answer
    x = 29,878.55

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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.