Home / 13,921.68-20,882.46-3,533.42

Finding the Fourth Proportional to 13,921.68, 20,882.46 and 3,533.42

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Solution

The fourth proportional to 13,921.68, 20,882.46 and 3,533.42 is: 5,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.68 : 20,882.46 = 3,533.42 : x
  2. Step 2: Convert to fraction form
    13,921.68/20,882.46 = 3,533.42/x
  3. Step 3: Cross multiply
    13,921.68x = 20,882.46 × 3,533.42
  4. Step 4: Simplify right side
    13,921.68x = 73,786,501.81
  5. Step 5: Solve for x
    x = 73,786,501.81/13,921.68
  6. Step 6: Final answer
    x = 5,300.11

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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.