Home / 13,429.44-20,142.30-3,569.52

Finding the Fourth Proportional to 13,429.44, 20,142.30 and 3,569.52

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Solution

The fourth proportional to 13,429.44, 20,142.30 and 3,569.52 is: 5,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.44 : 20,142.30 = 3,569.52 : x
  2. Step 2: Convert to fraction form
    13,429.44/20,142.30 = 3,569.52/x
  3. Step 3: Cross multiply
    13,429.44x = 20,142.30 × 3,569.52
  4. Step 4: Simplify right side
    13,429.44x = 71,898,342.70
  5. Step 5: Solve for x
    x = 71,898,342.70/13,429.44
  6. Step 6: Final answer
    x = 5,353.79

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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.