Home / 19,892.56-27,450.70-10,939.83

Finding the Fourth Proportional to 19,892.56, 27,450.70 and 10,939.83

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Solution

The fourth proportional to 19,892.56, 27,450.70 and 10,939.83 is: 15,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.56 : 27,450.70 = 10,939.83 : x
  2. Step 2: Convert to fraction form
    19,892.56/27,450.70 = 10,939.83/x
  3. Step 3: Cross multiply
    19,892.56x = 27,450.70 × 10,939.83
  4. Step 4: Simplify right side
    19,892.56x = 300,305,964.03
  5. Step 5: Solve for x
    x = 300,305,964.03/19,892.56
  6. Step 6: Final answer
    x = 15,096.40

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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.