Home / 20,327.34-30,491.25-7,170.48

Finding the Fourth Proportional to 20,327.34, 30,491.25 and 7,170.48

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Solution

The fourth proportional to 20,327.34, 30,491.25 and 7,170.48 is: 10,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.34 : 30,491.25 = 7,170.48 : x
  2. Step 2: Convert to fraction form
    20,327.34/30,491.25 = 7,170.48/x
  3. Step 3: Cross multiply
    20,327.34x = 30,491.25 × 7,170.48
  4. Step 4: Simplify right side
    20,327.34x = 218,636,898.30
  5. Step 5: Solve for x
    x = 218,636,898.30/20,327.34
  6. Step 6: Final answer
    x = 10,755.80

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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.