Home / 19,929.75-27,504.31-10,977.25

Finding the Fourth Proportional to 19,929.75, 27,504.31 and 10,977.25

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Solution

The fourth proportional to 19,929.75, 27,504.31 and 10,977.25 is: 15,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.75 : 27,504.31 = 10,977.25 : x
  2. Step 2: Convert to fraction form
    19,929.75/27,504.31 = 10,977.25/x
  3. Step 3: Cross multiply
    19,929.75x = 27,504.31 × 10,977.25
  4. Step 4: Simplify right side
    19,929.75x = 301,921,632.06
  5. Step 5: Solve for x
    x = 301,921,632.06/19,929.75
  6. Step 6: Final answer
    x = 15,149.29

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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.