Home / 13,989.46-20,983.53-3,459.45

Finding the Fourth Proportional to 13,989.46, 20,983.53 and 3,459.45

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Solution

The fourth proportional to 13,989.46, 20,983.53 and 3,459.45 is: 5,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.46 : 20,983.53 = 3,459.45 : x
  2. Step 2: Convert to fraction form
    13,989.46/20,983.53 = 3,459.45/x
  3. Step 3: Cross multiply
    13,989.46x = 20,983.53 × 3,459.45
  4. Step 4: Simplify right side
    13,989.46x = 72,591,350.64
  5. Step 5: Solve for x
    x = 72,591,350.64/13,989.46
  6. Step 6: Final answer
    x = 5,189.00

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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.