Home / 33,200.60-45,811.50-19,771.40

Finding the Fourth Proportional to 33,200.60, 45,811.50 and 19,771.40

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Solution

The fourth proportional to 33,200.60, 45,811.50 and 19,771.40 is: 27,281.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,200.60 : 45,811.50 = 19,771.40 : x
  2. Step 2: Convert to fraction form
    33,200.60/45,811.50 = 19,771.40/x
  3. Step 3: Cross multiply
    33,200.60x = 45,811.50 × 19,771.40
  4. Step 4: Simplify right side
    33,200.60x = 905,757,491.10
  5. Step 5: Solve for x
    x = 905,757,491.10/33,200.60
  6. Step 6: Final answer
    x = 27,281.36

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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.