Home / 25,180.80-34,749.36-13,851

Finding the Fourth Proportional to 25,180.80, 34,749.36 and 13,851

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Solution

The fourth proportional to 25,180.80, 34,749.36 and 13,851 is: 19,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,180.80 : 34,749.36 = 13,851 : x
  2. Step 2: Convert to fraction form
    25,180.80/34,749.36 = 13,851/x
  3. Step 3: Cross multiply
    25,180.80x = 34,749.36 × 13,851
  4. Step 4: Simplify right side
    25,180.80x = 481,313,385.36
  5. Step 5: Solve for x
    x = 481,313,385.36/25,180.80
  6. Step 6: Final answer
    x = 19,114.30

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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.