Home / 20,618.49-30,912.60-6,570.43

Finding the Fourth Proportional to 20,618.49, 30,912.60 and 6,570.43

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Solution

The fourth proportional to 20,618.49, 30,912.60 and 6,570.43 is: 9,850.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.49 : 30,912.60 = 6,570.43 : x
  2. Step 2: Convert to fraction form
    20,618.49/30,912.60 = 6,570.43/x
  3. Step 3: Cross multiply
    20,618.49x = 30,912.60 × 6,570.43
  4. Step 4: Simplify right side
    20,618.49x = 203,109,041.57
  5. Step 5: Solve for x
    x = 203,109,041.57/20,618.49
  6. Step 6: Final answer
    x = 9,850.82

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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.