Home / 19,891.34-27,449.52-10,939.76

Finding the Fourth Proportional to 19,891.34, 27,449.52 and 10,939.76

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Solution

The fourth proportional to 19,891.34, 27,449.52 and 10,939.76 is: 15,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.34 : 27,449.52 = 10,939.76 : x
  2. Step 2: Convert to fraction form
    19,891.34/27,449.52 = 10,939.76/x
  3. Step 3: Cross multiply
    19,891.34x = 27,449.52 × 10,939.76
  4. Step 4: Simplify right side
    19,891.34x = 300,291,160.92
  5. Step 5: Solve for x
    x = 300,291,160.92/19,891.34
  6. Step 6: Final answer
    x = 15,096.58

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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.