Home / 20,241.12-30,359.76-13,709.28

Finding the Fourth Proportional to 20,241.12, 30,359.76 and 13,709.28

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Solution

The fourth proportional to 20,241.12, 30,359.76 and 13,709.28 is: 20,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.12 : 30,359.76 = 13,709.28 : x
  2. Step 2: Convert to fraction form
    20,241.12/30,359.76 = 13,709.28/x
  3. Step 3: Cross multiply
    20,241.12x = 30,359.76 × 13,709.28
  4. Step 4: Simplify right side
    20,241.12x = 416,210,450.57
  5. Step 5: Solve for x
    x = 416,210,450.57/20,241.12
  6. Step 6: Final answer
    x = 20,562.62

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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.