Home / 31,662.81-47,487.74-11,930.49

Finding the Fourth Proportional to 31,662.81, 47,487.74 and 11,930.49

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Solution

The fourth proportional to 31,662.81, 47,487.74 and 11,930.49 is: 17,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,662.81 : 47,487.74 = 11,930.49 : x
  2. Step 2: Convert to fraction form
    31,662.81/47,487.74 = 11,930.49/x
  3. Step 3: Cross multiply
    31,662.81x = 47,487.74 × 11,930.49
  4. Step 4: Simplify right side
    31,662.81x = 566,551,947.54
  5. Step 5: Solve for x
    x = 566,551,947.54/31,662.81
  6. Step 6: Final answer
    x = 17,893.29

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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.