Home / 28,883.28-43,309.26-13,287

Finding the Fourth Proportional to 28,883.28, 43,309.26 and 13,287

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Solution

The fourth proportional to 28,883.28, 43,309.26 and 13,287 is: 19,923.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,883.28 : 43,309.26 = 13,287 : x
  2. Step 2: Convert to fraction form
    28,883.28/43,309.26 = 13,287/x
  3. Step 3: Cross multiply
    28,883.28x = 43,309.26 × 13,287
  4. Step 4: Simplify right side
    28,883.28x = 575,450,137.62
  5. Step 5: Solve for x
    x = 575,450,137.62/28,883.28
  6. Step 6: Final answer
    x = 19,923.30

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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.