Home / 13,923.87-20,885.49-3,393.95

Finding the Fourth Proportional to 13,923.87, 20,885.49 and 3,393.95

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Solution

The fourth proportional to 13,923.87, 20,885.49 and 3,393.95 is: 5,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.87 : 20,885.49 = 3,393.95 : x
  2. Step 2: Convert to fraction form
    13,923.87/20,885.49 = 3,393.95/x
  3. Step 3: Cross multiply
    13,923.87x = 20,885.49 × 3,393.95
  4. Step 4: Simplify right side
    13,923.87x = 70,884,204.36
  5. Step 5: Solve for x
    x = 70,884,204.36/13,923.87
  6. Step 6: Final answer
    x = 5,090.84

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1.5x scale

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.