Home / 26,561.92-39,860.16-11,780.48

Finding the Fourth Proportional to 26,561.92, 39,860.16 and 11,780.48

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Solution

The fourth proportional to 26,561.92, 39,860.16 and 11,780.48 is: 17,678.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,561.92 : 39,860.16 = 11,780.48 : x
  2. Step 2: Convert to fraction form
    26,561.92/39,860.16 = 11,780.48/x
  3. Step 3: Cross multiply
    26,561.92x = 39,860.16 × 11,780.48
  4. Step 4: Simplify right side
    26,561.92x = 469,571,817.68
  5. Step 5: Solve for x
    x = 469,571,817.68/26,561.92
  6. Step 6: Final answer
    x = 17,678.38

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1.5x scale

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.