Home / 40,176.75-55,438.09-22,271.75

Finding the Fourth Proportional to 40,176.75, 55,438.09 and 22,271.75

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Solution

The fourth proportional to 40,176.75, 55,438.09 and 22,271.75 is: 30,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,176.75 : 55,438.09 = 22,271.75 : x
  2. Step 2: Convert to fraction form
    40,176.75/55,438.09 = 22,271.75/x
  3. Step 3: Cross multiply
    40,176.75x = 55,438.09 × 22,271.75
  4. Step 4: Simplify right side
    40,176.75x = 1,234,703,280.96
  5. Step 5: Solve for x
    x = 1,234,703,280.96/40,176.75
  6. Step 6: Final answer
    x = 30,731.79

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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.