Home / 13,921.46-20,882.28-3,533.22

Finding the Fourth Proportional to 13,921.46, 20,882.28 and 3,533.22

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Solution

The fourth proportional to 13,921.46, 20,882.28 and 3,533.22 is: 5,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.46 : 20,882.28 = 3,533.22 : x
  2. Step 2: Convert to fraction form
    13,921.46/20,882.28 = 3,533.22/x
  3. Step 3: Cross multiply
    13,921.46x = 20,882.28 × 3,533.22
  4. Step 4: Simplify right side
    13,921.46x = 73,781,689.34
  5. Step 5: Solve for x
    x = 73,781,689.34/13,921.46
  6. Step 6: Final answer
    x = 5,299.85

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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.