Home / 19,131.28-28,696.80-11,334.52

Finding the Fourth Proportional to 19,131.28, 28,696.80 and 11,334.52

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Solution

The fourth proportional to 19,131.28, 28,696.80 and 11,334.52 is: 17,001.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.28 : 28,696.80 = 11,334.52 : x
  2. Step 2: Convert to fraction form
    19,131.28/28,696.80 = 11,334.52/x
  3. Step 3: Cross multiply
    19,131.28x = 28,696.80 × 11,334.52
  4. Step 4: Simplify right side
    19,131.28x = 325,264,453.54
  5. Step 5: Solve for x
    x = 325,264,453.54/19,131.28
  6. Step 6: Final answer
    x = 17,001.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.