Home / 26,529.78-39,759.49-19,476.80

Finding the Fourth Proportional to 26,529.78, 39,759.49 and 19,476.80

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Solution

The fourth proportional to 26,529.78, 39,759.49 and 19,476.80 is: 29,189.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,529.78 : 39,759.49 = 19,476.80 : x
  2. Step 2: Convert to fraction form
    26,529.78/39,759.49 = 19,476.80/x
  3. Step 3: Cross multiply
    26,529.78x = 39,759.49 × 19,476.80
  4. Step 4: Simplify right side
    26,529.78x = 774,387,833.13
  5. Step 5: Solve for x
    x = 774,387,833.13/26,529.78
  6. Step 6: Final answer
    x = 29,189.38

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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.