Home / 40,027.18-55,236.96-22,121.72

Finding the Fourth Proportional to 40,027.18, 55,236.96 and 22,121.72

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Solution

The fourth proportional to 40,027.18, 55,236.96 and 22,121.72 is: 30,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,027.18 : 55,236.96 = 22,121.72 : x
  2. Step 2: Convert to fraction form
    40,027.18/55,236.96 = 22,121.72/x
  3. Step 3: Cross multiply
    40,027.18x = 55,236.96 × 22,121.72
  4. Step 4: Simplify right side
    40,027.18x = 1,221,936,562.77
  5. Step 5: Solve for x
    x = 1,221,936,562.77/40,027.18
  6. Step 6: Final answer
    x = 30,527.67

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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.