Home / 43,911.24-65,846.70-18,939.32

Finding the Fourth Proportional to 43,911.24, 65,846.70 and 18,939.32

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Solution

The fourth proportional to 43,911.24, 65,846.70 and 18,939.32 is: 28,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.24 : 65,846.70 = 18,939.32 : x
  2. Step 2: Convert to fraction form
    43,911.24/65,846.70 = 18,939.32/x
  3. Step 3: Cross multiply
    43,911.24x = 65,846.70 × 18,939.32
  4. Step 4: Simplify right side
    43,911.24x = 1,247,091,722.24
  5. Step 5: Solve for x
    x = 1,247,091,722.24/43,911.24
  6. Step 6: Final answer
    x = 28,400.28

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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.