Home / 19,921.28-27,491.22-10,968.94

Finding the Fourth Proportional to 19,921.28, 27,491.22 and 10,968.94

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Solution

The fourth proportional to 19,921.28, 27,491.22 and 10,968.94 is: 15,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.28 : 27,491.22 = 10,968.94 : x
  2. Step 2: Convert to fraction form
    19,921.28/27,491.22 = 10,968.94/x
  3. Step 3: Cross multiply
    19,921.28x = 27,491.22 × 10,968.94
  4. Step 4: Simplify right side
    19,921.28x = 301,549,542.71
  5. Step 5: Solve for x
    x = 301,549,542.71/19,921.28
  6. Step 6: Final answer
    x = 15,137.06

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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.