Home / 20,623.98-30,936.06-7,471.20

Finding the Fourth Proportional to 20,623.98, 30,936.06 and 7,471.20

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Solution

The fourth proportional to 20,623.98, 30,936.06 and 7,471.20 is: 11,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.98 : 30,936.06 = 7,471.20 : x
  2. Step 2: Convert to fraction form
    20,623.98/30,936.06 = 7,471.20/x
  3. Step 3: Cross multiply
    20,623.98x = 30,936.06 × 7,471.20
  4. Step 4: Simplify right side
    20,623.98x = 231,129,491.47
  5. Step 5: Solve for x
    x = 231,129,491.47/20,623.98
  6. Step 6: Final answer
    x = 11,206.83

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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.