Home / 28,759.76-43,139.63-13,177.38

Finding the Fourth Proportional to 28,759.76, 43,139.63 and 13,177.38

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Solution

The fourth proportional to 28,759.76, 43,139.63 and 13,177.38 is: 19,766.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.76 : 43,139.63 = 13,177.38 : x
  2. Step 2: Convert to fraction form
    28,759.76/43,139.63 = 13,177.38/x
  3. Step 3: Cross multiply
    28,759.76x = 43,139.63 × 13,177.38
  4. Step 4: Simplify right side
    28,759.76x = 568,467,297.57
  5. Step 5: Solve for x
    x = 568,467,297.57/28,759.76
  6. Step 6: Final answer
    x = 19,766.07

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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.