Home / 28,080.27-38,750.54-15,504.75

Finding the Fourth Proportional to 28,080.27, 38,750.54 and 15,504.75

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Solution

The fourth proportional to 28,080.27, 38,750.54 and 15,504.75 is: 21,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.27 : 38,750.54 = 15,504.75 : x
  2. Step 2: Convert to fraction form
    28,080.27/38,750.54 = 15,504.75/x
  3. Step 3: Cross multiply
    28,080.27x = 38,750.54 × 15,504.75
  4. Step 4: Simplify right side
    28,080.27x = 600,817,357.54
  5. Step 5: Solve for x
    x = 600,817,357.54/28,080.27
  6. Step 6: Final answer
    x = 21,396.42

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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.