Home / 20,077.50-27,707.35-11,694.54

Finding the Fourth Proportional to 20,077.50, 27,707.35 and 11,694.54

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Solution

The fourth proportional to 20,077.50, 27,707.35 and 11,694.54 is: 16,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.50 : 27,707.35 = 11,694.54 : x
  2. Step 2: Convert to fraction form
    20,077.50/27,707.35 = 11,694.54/x
  3. Step 3: Cross multiply
    20,077.50x = 27,707.35 × 11,694.54
  4. Step 4: Simplify right side
    20,077.50x = 324,024,712.87
  5. Step 5: Solve for x
    x = 324,024,712.87/20,077.50
  6. Step 6: Final answer
    x = 16,138.70

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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.