Home / 20,175.84-30,288.96-13,631.04

Finding the Fourth Proportional to 20,175.84, 30,288.96 and 13,631.04

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Solution

The fourth proportional to 20,175.84, 30,288.96 and 13,631.04 is: 20,463.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.84 : 30,288.96 = 13,631.04 : x
  2. Step 2: Convert to fraction form
    20,175.84/30,288.96 = 13,631.04/x
  3. Step 3: Cross multiply
    20,175.84x = 30,288.96 × 13,631.04
  4. Step 4: Simplify right side
    20,175.84x = 412,870,025.32
  5. Step 5: Solve for x
    x = 412,870,025.32/20,175.84
  6. Step 6: Final answer
    x = 20,463.59

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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.