Home / 40,129.94-55,379.20-23,134.09

Finding the Fourth Proportional to 40,129.94, 55,379.20 and 23,134.09

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Solution

The fourth proportional to 40,129.94, 55,379.20 and 23,134.09 is: 31,924.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.94 : 55,379.20 = 23,134.09 : x
  2. Step 2: Convert to fraction form
    40,129.94/55,379.20 = 23,134.09/x
  3. Step 3: Cross multiply
    40,129.94x = 55,379.20 × 23,134.09
  4. Step 4: Simplify right side
    40,129.94x = 1,281,147,396.93
  5. Step 5: Solve for x
    x = 1,281,147,396.93/40,129.94
  6. Step 6: Final answer
    x = 31,924.98

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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.