Home / 31,849.64-47,708.76-18,662

Finding the Fourth Proportional to 31,849.64, 47,708.76 and 18,662

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Solution

The fourth proportional to 31,849.64, 47,708.76 and 18,662 is: 27,954.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.64 : 47,708.76 = 18,662 : x
  2. Step 2: Convert to fraction form
    31,849.64/47,708.76 = 18,662/x
  3. Step 3: Cross multiply
    31,849.64x = 47,708.76 × 18,662
  4. Step 4: Simplify right side
    31,849.64x = 890,340,879.12
  5. Step 5: Solve for x
    x = 890,340,879.12/31,849.64
  6. Step 6: Final answer
    x = 27,954.50

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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.