Home / 20,286.40-30,415.25-6,952.99

Finding the Fourth Proportional to 20,286.40, 30,415.25 and 6,952.99

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Solution

The fourth proportional to 20,286.40, 30,415.25 and 6,952.99 is: 10,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.40 : 30,415.25 = 6,952.99 : x
  2. Step 2: Convert to fraction form
    20,286.40/30,415.25 = 6,952.99/x
  3. Step 3: Cross multiply
    20,286.40x = 30,415.25 × 6,952.99
  4. Step 4: Simplify right side
    20,286.40x = 211,476,888.36
  5. Step 5: Solve for x
    x = 211,476,888.36/20,286.40
  6. Step 6: Final answer
    x = 10,424.56

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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.