Home / 19,927.78-27,499.38-10,975.66

Finding the Fourth Proportional to 19,927.78, 27,499.38 and 10,975.66

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Solution

The fourth proportional to 19,927.78, 27,499.38 and 10,975.66 is: 15,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.78 : 27,499.38 = 10,975.66 : x
  2. Step 2: Convert to fraction form
    19,927.78/27,499.38 = 10,975.66/x
  3. Step 3: Cross multiply
    19,927.78x = 27,499.38 × 10,975.66
  4. Step 4: Simplify right side
    19,927.78x = 301,823,845.09
  5. Step 5: Solve for x
    x = 301,823,845.09/19,927.78
  6. Step 6: Final answer
    x = 15,145.88

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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.