Home / 40,102.98-55,346.24-23,107.86

Finding the Fourth Proportional to 40,102.98, 55,346.24 and 23,107.86

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Solution

The fourth proportional to 40,102.98, 55,346.24 and 23,107.86 is: 31,891.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,102.98 : 55,346.24 = 23,107.86 : x
  2. Step 2: Convert to fraction form
    40,102.98/55,346.24 = 23,107.86/x
  3. Step 3: Cross multiply
    40,102.98x = 55,346.24 × 23,107.86
  4. Step 4: Simplify right side
    40,102.98x = 1,278,933,049.91
  5. Step 5: Solve for x
    x = 1,278,933,049.91/40,102.98
  6. Step 6: Final answer
    x = 31,891.22

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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.