Home / 28,728.60-43,063.18-10,954.48

Finding the Fourth Proportional to 28,728.60, 43,063.18 and 10,954.48

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Solution

The fourth proportional to 28,728.60, 43,063.18 and 10,954.48 is: 16,420.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.60 : 43,063.18 = 10,954.48 : x
  2. Step 2: Convert to fraction form
    28,728.60/43,063.18 = 10,954.48/x
  3. Step 3: Cross multiply
    28,728.60x = 43,063.18 × 10,954.48
  4. Step 4: Simplify right side
    28,728.60x = 471,734,609.00
  5. Step 5: Solve for x
    x = 471,734,609.00/28,728.60
  6. Step 6: Final answer
    x = 16,420.38

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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.