Home / 51,571.11-71,173.18-28,910.15

Finding the Fourth Proportional to 51,571.11, 71,173.18 and 28,910.15

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Solution

The fourth proportional to 51,571.11, 71,173.18 and 28,910.15 is: 39,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,571.11 : 71,173.18 = 28,910.15 : x
  2. Step 2: Convert to fraction form
    51,571.11/71,173.18 = 28,910.15/x
  3. Step 3: Cross multiply
    51,571.11x = 71,173.18 × 28,910.15
  4. Step 4: Simplify right side
    51,571.11x = 2,057,627,309.78
  5. Step 5: Solve for x
    x = 2,057,627,309.78/51,571.11
  6. Step 6: Final answer
    x = 39,898.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.