Home / 13,429.55-20,144.32-4,195.55

Finding the Fourth Proportional to 13,429.55, 20,144.32 and 4,195.55

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Solution

The fourth proportional to 13,429.55, 20,144.32 and 4,195.55 is: 6,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.55 : 20,144.32 = 4,195.55 : x
  2. Step 2: Convert to fraction form
    13,429.55/20,144.32 = 4,195.55/x
  3. Step 3: Cross multiply
    13,429.55x = 20,144.32 × 4,195.55
  4. Step 4: Simplify right side
    13,429.55x = 84,516,440.14
  5. Step 5: Solve for x
    x = 84,516,440.14/13,429.55
  6. Step 6: Final answer
    x = 6,293.32

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Double scale
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Similar ratio
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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.