Home / 20,618.62-30,912.78-6,570.55

Finding the Fourth Proportional to 20,618.62, 30,912.78 and 6,570.55

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Solution

The fourth proportional to 20,618.62, 30,912.78 and 6,570.55 is: 9,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.62 : 30,912.78 = 6,570.55 : x
  2. Step 2: Convert to fraction form
    20,618.62/30,912.78 = 6,570.55/x
  3. Step 3: Cross multiply
    20,618.62x = 30,912.78 × 6,570.55
  4. Step 4: Simplify right side
    20,618.62x = 203,114,029.91
  5. Step 5: Solve for x
    x = 203,114,029.91/20,618.62
  6. Step 6: Final answer
    x = 9,851.00

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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.