Home / 43,910.24-65,845.20-18,938.32

Finding the Fourth Proportional to 43,910.24, 65,845.20 and 18,938.32

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Solution

The fourth proportional to 43,910.24, 65,845.20 and 18,938.32 is: 28,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,910.24 : 65,845.20 = 18,938.32 : x
  2. Step 2: Convert to fraction form
    43,910.24/65,845.20 = 18,938.32/x
  3. Step 3: Cross multiply
    43,910.24x = 65,845.20 × 18,938.32
  4. Step 4: Simplify right side
    43,910.24x = 1,246,997,468.06
  5. Step 5: Solve for x
    x = 1,246,997,468.06/43,910.24
  6. Step 6: Final answer
    x = 28,398.79

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1.5x scale

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.