Home / 40,346.40-60,469.20-20,632.80

Finding the Fourth Proportional to 40,346.40, 60,469.20 and 20,632.80

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Solution

The fourth proportional to 40,346.40, 60,469.20 and 20,632.80 is: 30,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,346.40 : 60,469.20 = 20,632.80 : x
  2. Step 2: Convert to fraction form
    40,346.40/60,469.20 = 20,632.80/x
  3. Step 3: Cross multiply
    40,346.40x = 60,469.20 × 20,632.80
  4. Step 4: Simplify right side
    40,346.40x = 1,247,648,909.76
  5. Step 5: Solve for x
    x = 1,247,648,909.76/40,346.40
  6. Step 6: Final answer
    x = 30,923.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.