Home / 47,905.48-71,840.94-20,205.64

Finding the Fourth Proportional to 47,905.48, 71,840.94 and 20,205.64

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Solution

The fourth proportional to 47,905.48, 71,840.94 and 20,205.64 is: 30,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,905.48 : 71,840.94 = 20,205.64 : x
  2. Step 2: Convert to fraction form
    47,905.48/71,840.94 = 20,205.64/x
  3. Step 3: Cross multiply
    47,905.48x = 71,840.94 × 20,205.64
  4. Step 4: Simplify right side
    47,905.48x = 1,451,592,170.90
  5. Step 5: Solve for x
    x = 1,451,592,170.90/47,905.48
  6. Step 6: Final answer
    x = 30,301.17

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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.