Home / 18,828.98-25,969.57-13,791.39

Finding the Fourth Proportional to 18,828.98, 25,969.57 and 13,791.39

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Solution

The fourth proportional to 18,828.98, 25,969.57 and 13,791.39 is: 19,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.98 : 25,969.57 = 13,791.39 : x
  2. Step 2: Convert to fraction form
    18,828.98/25,969.57 = 13,791.39/x
  3. Step 3: Cross multiply
    18,828.98x = 25,969.57 × 13,791.39
  4. Step 4: Simplify right side
    18,828.98x = 358,156,468.00
  5. Step 5: Solve for x
    x = 358,156,468.00/18,828.98
  6. Step 6: Final answer
    x = 19,021.55

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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.