Home / 31,890.35-47,839.71-10,535.97

Finding the Fourth Proportional to 31,890.35, 47,839.71 and 10,535.97

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Solution

The fourth proportional to 31,890.35, 47,839.71 and 10,535.97 is: 15,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.35 : 47,839.71 = 10,535.97 : x
  2. Step 2: Convert to fraction form
    31,890.35/47,839.71 = 10,535.97/x
  3. Step 3: Cross multiply
    31,890.35x = 47,839.71 × 10,535.97
  4. Step 4: Simplify right side
    31,890.35x = 504,037,696.69
  5. Step 5: Solve for x
    x = 504,037,696.69/31,890.35
  6. Step 6: Final answer
    x = 15,805.34

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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.