Home / 20,422.82-30,617.49-7,267.70

Finding the Fourth Proportional to 20,422.82, 30,617.49 and 7,267.70

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Solution

The fourth proportional to 20,422.82, 30,617.49 and 7,267.70 is: 10,895.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422.82 : 30,617.49 = 7,267.70 : x
  2. Step 2: Convert to fraction form
    20,422.82/30,617.49 = 7,267.70/x
  3. Step 3: Cross multiply
    20,422.82x = 30,617.49 × 7,267.70
  4. Step 4: Simplify right side
    20,422.82x = 222,518,732.07
  5. Step 5: Solve for x
    x = 222,518,732.07/20,422.82
  6. Step 6: Final answer
    x = 10,895.59

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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.