Home / 13,827.45-20,741.17-3,439.20

Finding the Fourth Proportional to 13,827.45, 20,741.17 and 3,439.20

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Solution

The fourth proportional to 13,827.45, 20,741.17 and 3,439.20 is: 5,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.45 : 20,741.17 = 3,439.20 : x
  2. Step 2: Convert to fraction form
    13,827.45/20,741.17 = 3,439.20/x
  3. Step 3: Cross multiply
    13,827.45x = 20,741.17 × 3,439.20
  4. Step 4: Simplify right side
    13,827.45x = 71,333,014.67
  5. Step 5: Solve for x
    x = 71,333,014.67/13,827.45
  6. Step 6: Final answer
    x = 5,158.80

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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.