Home / 47,857.66-71,742.12-21,189.44

Finding the Fourth Proportional to 47,857.66, 71,742.12 and 21,189.44

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Solution

The fourth proportional to 47,857.66, 71,742.12 and 21,189.44 is: 31,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,857.66 : 71,742.12 = 21,189.44 : x
  2. Step 2: Convert to fraction form
    47,857.66/71,742.12 = 21,189.44/x
  3. Step 3: Cross multiply
    47,857.66x = 71,742.12 × 21,189.44
  4. Step 4: Simplify right side
    47,857.66x = 1,520,175,162.75
  5. Step 5: Solve for x
    x = 1,520,175,162.75/47,857.66
  6. Step 6: Final answer
    x = 31,764.51

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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.