Home / 20,008.06-30,012.09-5,216.95

Finding the Fourth Proportional to 20,008.06, 30,012.09 and 5,216.95

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Solution

The fourth proportional to 20,008.06, 30,012.09 and 5,216.95 is: 7,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.06 : 30,012.09 = 5,216.95 : x
  2. Step 2: Convert to fraction form
    20,008.06/30,012.09 = 5,216.95/x
  3. Step 3: Cross multiply
    20,008.06x = 30,012.09 × 5,216.95
  4. Step 4: Simplify right side
    20,008.06x = 156,571,572.93
  5. Step 5: Solve for x
    x = 156,571,572.93/20,008.06
  6. Step 6: Final answer
    x = 7,825.43

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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.