Home / 13,941.45-20,908.80-4,079.70

Finding the Fourth Proportional to 13,941.45, 20,908.80 and 4,079.70

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Solution

The fourth proportional to 13,941.45, 20,908.80 and 4,079.70 is: 6,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.45 : 20,908.80 = 4,079.70 : x
  2. Step 2: Convert to fraction form
    13,941.45/20,908.80 = 4,079.70/x
  3. Step 3: Cross multiply
    13,941.45x = 20,908.80 × 4,079.70
  4. Step 4: Simplify right side
    13,941.45x = 85,301,631.36
  5. Step 5: Solve for x
    x = 85,301,631.36/13,941.45
  6. Step 6: Final answer
    x = 6,118.56

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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.