Home / 28,680.87-43,021.22-7,623.03

Finding the Fourth Proportional to 28,680.87, 43,021.22 and 7,623.03

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Solution

The fourth proportional to 28,680.87, 43,021.22 and 7,623.03 is: 11,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.87 : 43,021.22 = 7,623.03 : x
  2. Step 2: Convert to fraction form
    28,680.87/43,021.22 = 7,623.03/x
  3. Step 3: Cross multiply
    28,680.87x = 43,021.22 × 7,623.03
  4. Step 4: Simplify right side
    28,680.87x = 327,952,139.19
  5. Step 5: Solve for x
    x = 327,952,139.19/28,680.87
  6. Step 6: Final answer
    x = 11,434.52

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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.