Home / 31,991.64-47,958.24-11,203.80

Finding the Fourth Proportional to 31,991.64, 47,958.24 and 11,203.80

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Solution

The fourth proportional to 31,991.64, 47,958.24 and 11,203.80 is: 16,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,991.64 : 47,958.24 = 11,203.80 : x
  2. Step 2: Convert to fraction form
    31,991.64/47,958.24 = 11,203.80/x
  3. Step 3: Cross multiply
    31,991.64x = 47,958.24 × 11,203.80
  4. Step 4: Simplify right side
    31,991.64x = 537,314,529.31
  5. Step 5: Solve for x
    x = 537,314,529.31/31,991.64
  6. Step 6: Final answer
    x = 16,795.47

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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.