Home / 20,537.20-30,805.70-8,048.40

Finding the Fourth Proportional to 20,537.20, 30,805.70 and 8,048.40

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Solution

The fourth proportional to 20,537.20, 30,805.70 and 8,048.40 is: 12,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.20 : 30,805.70 = 8,048.40 : x
  2. Step 2: Convert to fraction form
    20,537.20/30,805.70 = 8,048.40/x
  3. Step 3: Cross multiply
    20,537.20x = 30,805.70 × 8,048.40
  4. Step 4: Simplify right side
    20,537.20x = 247,936,595.88
  5. Step 5: Solve for x
    x = 247,936,595.88/20,537.20
  6. Step 6: Final answer
    x = 12,072.56

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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.