Home / 13,439.96-20,161.08-3,579.24

Finding the Fourth Proportional to 13,439.96, 20,161.08 and 3,579.24

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Solution

The fourth proportional to 13,439.96, 20,161.08 and 3,579.24 is: 5,369.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.96 : 20,161.08 = 3,579.24 : x
  2. Step 2: Convert to fraction form
    13,439.96/20,161.08 = 3,579.24/x
  3. Step 3: Cross multiply
    13,439.96x = 20,161.08 × 3,579.24
  4. Step 4: Simplify right side
    13,439.96x = 72,161,343.98
  5. Step 5: Solve for x
    x = 72,161,343.98/13,439.96
  6. Step 6: Final answer
    x = 5,369.16

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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.