Home / 31,906.16-47,857.49-9,717.68

Finding the Fourth Proportional to 31,906.16, 47,857.49 and 9,717.68

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Solution

The fourth proportional to 31,906.16, 47,857.49 and 9,717.68 is: 14,575.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,906.16 : 47,857.49 = 9,717.68 : x
  2. Step 2: Convert to fraction form
    31,906.16/47,857.49 = 9,717.68/x
  3. Step 3: Cross multiply
    31,906.16x = 47,857.49 × 9,717.68
  4. Step 4: Simplify right side
    31,906.16x = 465,063,917.36
  5. Step 5: Solve for x
    x = 465,063,917.36/31,906.16
  6. Step 6: Final answer
    x = 14,575.99

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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.