Home / 28,728.37-43,055.12-14,676.55

Finding the Fourth Proportional to 28,728.37, 43,055.12 and 14,676.55

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Solution

The fourth proportional to 28,728.37, 43,055.12 and 14,676.55 is: 21,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.37 : 43,055.12 = 14,676.55 : x
  2. Step 2: Convert to fraction form
    28,728.37/43,055.12 = 14,676.55/x
  3. Step 3: Cross multiply
    28,728.37x = 43,055.12 × 14,676.55
  4. Step 4: Simplify right side
    28,728.37x = 631,900,811.94
  5. Step 5: Solve for x
    x = 631,900,811.94/28,728.37
  6. Step 6: Final answer
    x = 21,995.71

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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.