Home / 40,125.42-55,372.20-21,976.15

Finding the Fourth Proportional to 40,125.42, 55,372.20 and 21,976.15

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Solution

The fourth proportional to 40,125.42, 55,372.20 and 21,976.15 is: 30,326.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,125.42 : 55,372.20 = 21,976.15 : x
  2. Step 2: Convert to fraction form
    40,125.42/55,372.20 = 21,976.15/x
  3. Step 3: Cross multiply
    40,125.42x = 55,372.20 × 21,976.15
  4. Step 4: Simplify right side
    40,125.42x = 1,216,867,773.03
  5. Step 5: Solve for x
    x = 1,216,867,773.03/40,125.42
  6. Step 6: Final answer
    x = 30,326.61

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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.