Home / 31,584.05-47,348.54-11,857.31

Finding the Fourth Proportional to 31,584.05, 47,348.54 and 11,857.31

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Solution

The fourth proportional to 31,584.05, 47,348.54 and 11,857.31 is: 17,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.05 : 47,348.54 = 11,857.31 : x
  2. Step 2: Convert to fraction form
    31,584.05/47,348.54 = 11,857.31/x
  3. Step 3: Cross multiply
    31,584.05x = 47,348.54 × 11,857.31
  4. Step 4: Simplify right side
    31,584.05x = 561,426,257.54
  5. Step 5: Solve for x
    x = 561,426,257.54/31,584.05
  6. Step 6: Final answer
    x = 17,775.63

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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.