Home / 31,979.99-47,961.66-13,265.33

Finding the Fourth Proportional to 31,979.99, 47,961.66 and 13,265.33

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Solution

The fourth proportional to 31,979.99, 47,961.66 and 13,265.33 is: 19,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.99 : 47,961.66 = 13,265.33 : x
  2. Step 2: Convert to fraction form
    31,979.99/47,961.66 = 13,265.33/x
  3. Step 3: Cross multiply
    31,979.99x = 47,961.66 × 13,265.33
  4. Step 4: Simplify right side
    31,979.99x = 636,227,247.25
  5. Step 5: Solve for x
    x = 636,227,247.25/31,979.99
  6. Step 6: Final answer
    x = 19,894.54

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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.