Home / 28,277.44-39,015.84-15,699.04

Finding the Fourth Proportional to 28,277.44, 39,015.84 and 15,699.04

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Solution

The fourth proportional to 28,277.44, 39,015.84 and 15,699.04 is: 21,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.44 : 39,015.84 = 15,699.04 : x
  2. Step 2: Convert to fraction form
    28,277.44/39,015.84 = 15,699.04/x
  3. Step 3: Cross multiply
    28,277.44x = 39,015.84 × 15,699.04
  4. Step 4: Simplify right side
    28,277.44x = 612,511,232.79
  5. Step 5: Solve for x
    x = 612,511,232.79/28,277.44
  6. Step 6: Final answer
    x = 21,660.77

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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.