Home / 20,236.87-30,345.88-6,906.25

Finding the Fourth Proportional to 20,236.87, 30,345.88 and 6,906.25

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Solution

The fourth proportional to 20,236.87, 30,345.88 and 6,906.25 is: 10,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.87 : 30,345.88 = 6,906.25 : x
  2. Step 2: Convert to fraction form
    20,236.87/30,345.88 = 6,906.25/x
  3. Step 3: Cross multiply
    20,236.87x = 30,345.88 × 6,906.25
  4. Step 4: Simplify right side
    20,236.87x = 209,576,214.98
  5. Step 5: Solve for x
    x = 209,576,214.98/20,236.87
  6. Step 6: Final answer
    x = 10,356.16

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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.