Home / 20,276.67-30,415.84-6,958.81

Finding the Fourth Proportional to 20,276.67, 30,415.84 and 6,958.81

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Solution

The fourth proportional to 20,276.67, 30,415.84 and 6,958.81 is: 10,438.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.67 : 30,415.84 = 6,958.81 : x
  2. Step 2: Convert to fraction form
    20,276.67/30,415.84 = 6,958.81/x
  3. Step 3: Cross multiply
    20,276.67x = 30,415.84 × 6,958.81
  4. Step 4: Simplify right side
    20,276.67x = 211,658,092.80
  5. Step 5: Solve for x
    x = 211,658,092.80/20,276.67
  6. Step 6: Final answer
    x = 10,438.51

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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.