Home / 40,138.53-55,391.16-22,234.69

Finding the Fourth Proportional to 40,138.53, 55,391.16 and 22,234.69

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Solution

The fourth proportional to 40,138.53, 55,391.16 and 22,234.69 is: 30,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.53 : 55,391.16 = 22,234.69 : x
  2. Step 2: Convert to fraction form
    40,138.53/55,391.16 = 22,234.69/x
  3. Step 3: Cross multiply
    40,138.53x = 55,391.16 × 22,234.69
  4. Step 4: Simplify right side
    40,138.53x = 1,231,605,423.96
  5. Step 5: Solve for x
    x = 1,231,605,423.96/40,138.53
  6. Step 6: Final answer
    x = 30,683.87

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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.