Home / 43,131.20-64,670.24-16,805.28

Finding the Fourth Proportional to 43,131.20, 64,670.24 and 16,805.28

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Solution

The fourth proportional to 43,131.20, 64,670.24 and 16,805.28 is: 25,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,131.20 : 64,670.24 = 16,805.28 : x
  2. Step 2: Convert to fraction form
    43,131.20/64,670.24 = 16,805.28/x
  3. Step 3: Cross multiply
    43,131.20x = 64,670.24 × 16,805.28
  4. Step 4: Simplify right side
    43,131.20x = 1,086,801,490.87
  5. Step 5: Solve for x
    x = 1,086,801,490.87/43,131.20
  6. Step 6: Final answer
    x = 25,197.57

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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.