Home / 38,999.30-58,412.55-30,205.70

Finding the Fourth Proportional to 38,999.30, 58,412.55 and 30,205.70

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Solution

The fourth proportional to 38,999.30, 58,412.55 and 30,205.70 is: 45,241.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,999.30 : 58,412.55 = 30,205.70 : x
  2. Step 2: Convert to fraction form
    38,999.30/58,412.55 = 30,205.70/x
  3. Step 3: Cross multiply
    38,999.30x = 58,412.55 × 30,205.70
  4. Step 4: Simplify right side
    38,999.30x = 1,764,391,961.54
  5. Step 5: Solve for x
    x = 1,764,391,961.54/38,999.30
  6. Step 6: Final answer
    x = 45,241.63

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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.