Home / 13,429.79-20,145.59-3,568.85

Finding the Fourth Proportional to 13,429.79, 20,145.59 and 3,568.85

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Solution

The fourth proportional to 13,429.79, 20,145.59 and 3,568.85 is: 5,353.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.79 : 20,145.59 = 3,568.85 : x
  2. Step 2: Convert to fraction form
    13,429.79/20,145.59 = 3,568.85/x
  3. Step 3: Cross multiply
    13,429.79x = 20,145.59 × 3,568.85
  4. Step 4: Simplify right side
    13,429.79x = 71,896,588.87
  5. Step 5: Solve for x
    x = 71,896,588.87/13,429.79
  6. Step 6: Final answer
    x = 5,353.52

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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.