Home / 38,519.80-57,725.70-30,635.80

Finding the Fourth Proportional to 38,519.80, 57,725.70 and 30,635.80

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Solution

The fourth proportional to 38,519.80, 57,725.70 and 30,635.80 is: 45,910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.80 : 57,725.70 = 30,635.80 : x
  2. Step 2: Convert to fraction form
    38,519.80/57,725.70 = 30,635.80/x
  3. Step 3: Cross multiply
    38,519.80x = 57,725.70 × 30,635.80
  4. Step 4: Simplify right side
    38,519.80x = 1,768,473,000.06
  5. Step 5: Solve for x
    x = 1,768,473,000.06/38,519.80
  6. Step 6: Final answer
    x = 45,910.75

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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.