Home / 47,453.28-71,184.78-21,155.82

Finding the Fourth Proportional to 47,453.28, 71,184.78 and 21,155.82

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Solution

The fourth proportional to 47,453.28, 71,184.78 and 21,155.82 is: 31,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,453.28 : 71,184.78 = 21,155.82 : x
  2. Step 2: Convert to fraction form
    47,453.28/71,184.78 = 21,155.82/x
  3. Step 3: Cross multiply
    47,453.28x = 71,184.78 × 21,155.82
  4. Step 4: Simplify right side
    47,453.28x = 1,505,972,392.42
  5. Step 5: Solve for x
    x = 1,505,972,392.42/47,453.28
  6. Step 6: Final answer
    x = 31,735.90

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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.