Home / 47,847.40-71,740.38-20,137.96

Finding the Fourth Proportional to 47,847.40, 71,740.38 and 20,137.96

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Solution

The fourth proportional to 47,847.40, 71,740.38 and 20,137.96 is: 30,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,847.40 : 71,740.38 = 20,137.96 : x
  2. Step 2: Convert to fraction form
    47,847.40/71,740.38 = 20,137.96/x
  3. Step 3: Cross multiply
    47,847.40x = 71,740.38 × 20,137.96
  4. Step 4: Simplify right side
    47,847.40x = 1,444,704,902.82
  5. Step 5: Solve for x
    x = 1,444,704,902.82/47,847.40
  6. Step 6: Final answer
    x = 30,194.01

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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.