Home / 20,039.40-27,771.12-19,757.52

Finding the Fourth Proportional to 20,039.40, 27,771.12 and 19,757.52

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Solution

The fourth proportional to 20,039.40, 27,771.12 and 19,757.52 is: 27,380.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.40 : 27,771.12 = 19,757.52 : x
  2. Step 2: Convert to fraction form
    20,039.40/27,771.12 = 19,757.52/x
  3. Step 3: Cross multiply
    20,039.40x = 27,771.12 × 19,757.52
  4. Step 4: Simplify right side
    20,039.40x = 548,688,458.82
  5. Step 5: Solve for x
    x = 548,688,458.82/20,039.40
  6. Step 6: Final answer
    x = 27,380.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.