Home / 40,006.39-55,205.09-25,640.86

Finding the Fourth Proportional to 40,006.39, 55,205.09 and 25,640.86

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Solution

The fourth proportional to 40,006.39, 55,205.09 and 25,640.86 is: 35,381.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,006.39 : 55,205.09 = 25,640.86 : x
  2. Step 2: Convert to fraction form
    40,006.39/55,205.09 = 25,640.86/x
  3. Step 3: Cross multiply
    40,006.39x = 55,205.09 × 25,640.86
  4. Step 4: Simplify right side
    40,006.39x = 1,415,505,855.77
  5. Step 5: Solve for x
    x = 1,415,505,855.77/40,006.39
  6. Step 6: Final answer
    x = 35,381.99

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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.