Home / 20,187.25-30,281.46-5,396.19

Finding the Fourth Proportional to 20,187.25, 30,281.46 and 5,396.19

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Solution

The fourth proportional to 20,187.25, 30,281.46 and 5,396.19 is: 8,094.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.25 : 30,281.46 = 5,396.19 : x
  2. Step 2: Convert to fraction form
    20,187.25/30,281.46 = 5,396.19/x
  3. Step 3: Cross multiply
    20,187.25x = 30,281.46 × 5,396.19
  4. Step 4: Simplify right side
    20,187.25x = 163,404,511.64
  5. Step 5: Solve for x
    x = 163,404,511.64/20,187.25
  6. Step 6: Final answer
    x = 8,094.44

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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.