Home / 31,647.66-47,471.48-11,930.64

Finding the Fourth Proportional to 31,647.66, 47,471.48 and 11,930.64

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Solution

The fourth proportional to 31,647.66, 47,471.48 and 11,930.64 is: 17,895.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.66 : 47,471.48 = 11,930.64 : x
  2. Step 2: Convert to fraction form
    31,647.66/47,471.48 = 11,930.64/x
  3. Step 3: Cross multiply
    31,647.66x = 47,471.48 × 11,930.64
  4. Step 4: Simplify right side
    31,647.66x = 566,365,138.15
  5. Step 5: Solve for x
    x = 566,365,138.15/31,647.66
  6. Step 6: Final answer
    x = 17,895.96

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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.