Home / 27,866.96-41,759.40-20,436.80

Finding the Fourth Proportional to 27,866.96, 41,759.40 and 20,436.80

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Solution

The fourth proportional to 27,866.96, 41,759.40 and 20,436.80 is: 30,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.96 : 41,759.40 = 20,436.80 : x
  2. Step 2: Convert to fraction form
    27,866.96/41,759.40 = 20,436.80/x
  3. Step 3: Cross multiply
    27,866.96x = 41,759.40 × 20,436.80
  4. Step 4: Simplify right side
    27,866.96x = 853,428,505.92
  5. Step 5: Solve for x
    x = 853,428,505.92/27,866.96
  6. Step 6: Final answer
    x = 30,625.10

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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.