Home / 48,370.09-72,481.16-20,274.83

Finding the Fourth Proportional to 48,370.09, 72,481.16 and 20,274.83

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Solution

The fourth proportional to 48,370.09, 72,481.16 and 20,274.83 is: 30,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,370.09 : 72,481.16 = 20,274.83 : x
  2. Step 2: Convert to fraction form
    48,370.09/72,481.16 = 20,274.83/x
  3. Step 3: Cross multiply
    48,370.09x = 72,481.16 × 20,274.83
  4. Step 4: Simplify right side
    48,370.09x = 1,469,543,121.12
  5. Step 5: Solve for x
    x = 1,469,543,121.12/48,370.09
  6. Step 6: Final answer
    x = 30,381.24

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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.