Home / 40,282.20-60,423.30-13,989.60

Finding the Fourth Proportional to 40,282.20, 60,423.30 and 13,989.60

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Solution

The fourth proportional to 40,282.20, 60,423.30 and 13,989.60 is: 20,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,282.20 : 60,423.30 = 13,989.60 : x
  2. Step 2: Convert to fraction form
    40,282.20/60,423.30 = 13,989.60/x
  3. Step 3: Cross multiply
    40,282.20x = 60,423.30 × 13,989.60
  4. Step 4: Simplify right side
    40,282.20x = 845,297,797.68
  5. Step 5: Solve for x
    x = 845,297,797.68/40,282.20
  6. Step 6: Final answer
    x = 20,984.40

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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.