Home / 19,930.30-27,504-10,977.84

Finding the Fourth Proportional to 19,930.30, 27,504 and 10,977.84

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Solution

The fourth proportional to 19,930.30, 27,504 and 10,977.84 is: 15,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.30 : 27,504 = 10,977.84 : x
  2. Step 2: Convert to fraction form
    19,930.30/27,504 = 10,977.84/x
  3. Step 3: Cross multiply
    19,930.30x = 27,504 × 10,977.84
  4. Step 4: Simplify right side
    19,930.30x = 301,934,511.36
  5. Step 5: Solve for x
    x = 301,934,511.36/19,930.30
  6. Step 6: Final answer
    x = 15,149.52

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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.