Home / 31,890.80-47,828.92-9,395.68

Finding the Fourth Proportional to 31,890.80, 47,828.92 and 9,395.68

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Solution

The fourth proportional to 31,890.80, 47,828.92 and 9,395.68 is: 14,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.80 : 47,828.92 = 9,395.68 : x
  2. Step 2: Convert to fraction form
    31,890.80/47,828.92 = 9,395.68/x
  3. Step 3: Cross multiply
    31,890.80x = 47,828.92 × 9,395.68
  4. Step 4: Simplify right side
    31,890.80x = 449,385,227.07
  5. Step 5: Solve for x
    x = 449,385,227.07/31,890.80
  6. Step 6: Final answer
    x = 14,091.38

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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.