Home / 28,805.26-43,100.16-20,504.38

Finding the Fourth Proportional to 28,805.26, 43,100.16 and 20,504.38

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Solution

The fourth proportional to 28,805.26, 43,100.16 and 20,504.38 is: 30,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.26 : 43,100.16 = 20,504.38 : x
  2. Step 2: Convert to fraction form
    28,805.26/43,100.16 = 20,504.38/x
  3. Step 3: Cross multiply
    28,805.26x = 43,100.16 × 20,504.38
  4. Step 4: Simplify right side
    28,805.26x = 883,742,058.70
  5. Step 5: Solve for x
    x = 883,742,058.70/28,805.26
  6. Step 6: Final answer
    x = 30,679.88

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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.