Home / 28,034.94-38,686.26-15,772.19

Finding the Fourth Proportional to 28,034.94, 38,686.26 and 15,772.19

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Solution

The fourth proportional to 28,034.94, 38,686.26 and 15,772.19 is: 21,764.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.94 : 38,686.26 = 15,772.19 : x
  2. Step 2: Convert to fraction form
    28,034.94/38,686.26 = 15,772.19/x
  3. Step 3: Cross multiply
    28,034.94x = 38,686.26 × 15,772.19
  4. Step 4: Simplify right side
    28,034.94x = 610,167,198.97
  5. Step 5: Solve for x
    x = 610,167,198.97/28,034.94
  6. Step 6: Final answer
    x = 21,764.53

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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.