Home / 39,859.52-55,006.26-21,954.92

Finding the Fourth Proportional to 39,859.52, 55,006.26 and 21,954.92

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Solution

The fourth proportional to 39,859.52, 55,006.26 and 21,954.92 is: 30,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,859.52 : 55,006.26 = 21,954.92 : x
  2. Step 2: Convert to fraction form
    39,859.52/55,006.26 = 21,954.92/x
  3. Step 3: Cross multiply
    39,859.52x = 55,006.26 × 21,954.92
  4. Step 4: Simplify right side
    39,859.52x = 1,207,658,037.80
  5. Step 5: Solve for x
    x = 1,207,658,037.80/39,859.52
  6. Step 6: Final answer
    x = 30,297.86

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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.