Home / 31,515.47-47,273.03-18,179.82

Finding the Fourth Proportional to 31,515.47, 47,273.03 and 18,179.82

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Solution

The fourth proportional to 31,515.47, 47,273.03 and 18,179.82 is: 27,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.47 : 47,273.03 = 18,179.82 : x
  2. Step 2: Convert to fraction form
    31,515.47/47,273.03 = 18,179.82/x
  3. Step 3: Cross multiply
    31,515.47x = 47,273.03 × 18,179.82
  4. Step 4: Simplify right side
    31,515.47x = 859,415,153.53
  5. Step 5: Solve for x
    x = 859,415,153.53/31,515.47
  6. Step 6: Final answer
    x = 27,269.63

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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.