Home / 13,619.55-20,429.33-13,533.15

Finding the Fourth Proportional to 13,619.55, 20,429.33 and 13,533.15

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Solution

The fourth proportional to 13,619.55, 20,429.33 and 13,533.15 is: 20,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.55 : 20,429.33 = 13,533.15 : x
  2. Step 2: Convert to fraction form
    13,619.55/20,429.33 = 13,533.15/x
  3. Step 3: Cross multiply
    13,619.55x = 20,429.33 × 13,533.15
  4. Step 4: Simplify right side
    13,619.55x = 276,473,119.62
  5. Step 5: Solve for x
    x = 276,473,119.62/13,619.55
  6. Step 6: Final answer
    x = 20,299.73

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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.