Home / 28,974.96-39,982.68-23,021.04

Finding the Fourth Proportional to 28,974.96, 39,982.68 and 23,021.04

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Solution

The fourth proportional to 28,974.96, 39,982.68 and 23,021.04 is: 31,766.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.96 : 39,982.68 = 23,021.04 : x
  2. Step 2: Convert to fraction form
    28,974.96/39,982.68 = 23,021.04/x
  3. Step 3: Cross multiply
    28,974.96x = 39,982.68 × 23,021.04
  4. Step 4: Simplify right side
    28,974.96x = 920,442,875.59
  5. Step 5: Solve for x
    x = 920,442,875.59/28,974.96
  6. Step 6: Final answer
    x = 31,766.84

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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.