Home / 31,667.76-47,503.80-11,942.64

Finding the Fourth Proportional to 31,667.76, 47,503.80 and 11,942.64

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Solution

The fourth proportional to 31,667.76, 47,503.80 and 11,942.64 is: 17,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,667.76 : 47,503.80 = 11,942.64 : x
  2. Step 2: Convert to fraction form
    31,667.76/47,503.80 = 11,942.64/x
  3. Step 3: Cross multiply
    31,667.76x = 47,503.80 × 11,942.64
  4. Step 4: Simplify right side
    31,667.76x = 567,320,782.03
  5. Step 5: Solve for x
    x = 567,320,782.03/31,667.76
  6. Step 6: Final answer
    x = 17,914.77

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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.