Home / 28,034.44-38,687.03-15,287.72

Finding the Fourth Proportional to 28,034.44, 38,687.03 and 15,287.72

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Solution

The fourth proportional to 28,034.44, 38,687.03 and 15,287.72 is: 21,096.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.44 : 38,687.03 = 15,287.72 : x
  2. Step 2: Convert to fraction form
    28,034.44/38,687.03 = 15,287.72/x
  3. Step 3: Cross multiply
    28,034.44x = 38,687.03 × 15,287.72
  4. Step 4: Simplify right side
    28,034.44x = 591,436,482.27
  5. Step 5: Solve for x
    x = 591,436,482.27/28,034.44
  6. Step 6: Final answer
    x = 21,096.78

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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.