Home / 37,149.75-51,267.60-20,382.75

Finding the Fourth Proportional to 37,149.75, 51,267.60 and 20,382.75

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Solution

The fourth proportional to 37,149.75, 51,267.60 and 20,382.75 is: 28,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,149.75 : 51,267.60 = 20,382.75 : x
  2. Step 2: Convert to fraction form
    37,149.75/51,267.60 = 20,382.75/x
  3. Step 3: Cross multiply
    37,149.75x = 51,267.60 × 20,382.75
  4. Step 4: Simplify right side
    37,149.75x = 1,044,974,673.90
  5. Step 5: Solve for x
    x = 1,044,974,673.90/37,149.75
  6. Step 6: Final answer
    x = 28,128.71

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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.