Home / 13,827.28-20,740.99-3,439.03

Finding the Fourth Proportional to 13,827.28, 20,740.99 and 3,439.03

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Solution

The fourth proportional to 13,827.28, 20,740.99 and 3,439.03 is: 5,158.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.28 : 20,740.99 = 3,439.03 : x
  2. Step 2: Convert to fraction form
    13,827.28/20,740.99 = 3,439.03/x
  3. Step 3: Cross multiply
    13,827.28x = 20,740.99 × 3,439.03
  4. Step 4: Simplify right side
    13,827.28x = 71,328,783.13
  5. Step 5: Solve for x
    x = 71,328,783.13/13,827.28
  6. Step 6: Final answer
    x = 5,158.56

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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.