Home / 20,517.49-30,775.69-6,476.95

Finding the Fourth Proportional to 20,517.49, 30,775.69 and 6,476.95

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Solution

The fourth proportional to 20,517.49, 30,775.69 and 6,476.95 is: 9,715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.49 : 30,775.69 = 6,476.95 : x
  2. Step 2: Convert to fraction form
    20,517.49/30,775.69 = 6,476.95/x
  3. Step 3: Cross multiply
    20,517.49x = 30,775.69 × 6,476.95
  4. Step 4: Simplify right side
    20,517.49x = 199,332,605.35
  5. Step 5: Solve for x
    x = 199,332,605.35/20,517.49
  6. Step 6: Final answer
    x = 9,715.25

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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.