Home / 28,968.96-39,974.40-23,015.04

Finding the Fourth Proportional to 28,968.96, 39,974.40 and 23,015.04

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Solution

The fourth proportional to 28,968.96, 39,974.40 and 23,015.04 is: 31,758.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.96 : 39,974.40 = 23,015.04 : x
  2. Step 2: Convert to fraction form
    28,968.96/39,974.40 = 23,015.04/x
  3. Step 3: Cross multiply
    28,968.96x = 39,974.40 × 23,015.04
  4. Step 4: Simplify right side
    28,968.96x = 920,012,414.98
  5. Step 5: Solve for x
    x = 920,012,414.98/28,968.96
  6. Step 6: Final answer
    x = 31,758.56

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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.