Home / 34,618.88-47,759.09-21,863.21

Finding the Fourth Proportional to 34,618.88, 47,759.09 and 21,863.21

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Solution

The fourth proportional to 34,618.88, 47,759.09 and 21,863.21 is: 30,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,618.88 : 47,759.09 = 21,863.21 : x
  2. Step 2: Convert to fraction form
    34,618.88/47,759.09 = 21,863.21/x
  3. Step 3: Cross multiply
    34,618.88x = 47,759.09 × 21,863.21
  4. Step 4: Simplify right side
    34,618.88x = 1,044,166,665.97
  5. Step 5: Solve for x
    x = 1,044,166,665.97/34,618.88
  6. Step 6: Final answer
    x = 30,161.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.