Home / 19,891.64-27,451.08-10,939.52

Finding the Fourth Proportional to 19,891.64, 27,451.08 and 10,939.52

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Solution

The fourth proportional to 19,891.64, 27,451.08 and 10,939.52 is: 15,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.64 : 27,451.08 = 10,939.52 : x
  2. Step 2: Convert to fraction form
    19,891.64/27,451.08 = 10,939.52/x
  3. Step 3: Cross multiply
    19,891.64x = 27,451.08 × 10,939.52
  4. Step 4: Simplify right side
    19,891.64x = 300,301,638.68
  5. Step 5: Solve for x
    x = 300,301,638.68/19,891.64
  6. Step 6: Final answer
    x = 15,096.88

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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.