Home / 20,286.62-30,430.12-5,495.70

Finding the Fourth Proportional to 20,286.62, 30,430.12 and 5,495.70

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Solution

The fourth proportional to 20,286.62, 30,430.12 and 5,495.70 is: 8,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.62 : 30,430.12 = 5,495.70 : x
  2. Step 2: Convert to fraction form
    20,286.62/30,430.12 = 5,495.70/x
  3. Step 3: Cross multiply
    20,286.62x = 30,430.12 × 5,495.70
  4. Step 4: Simplify right side
    20,286.62x = 167,234,810.48
  5. Step 5: Solve for x
    x = 167,234,810.48/20,286.62
  6. Step 6: Final answer
    x = 8,243.60

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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.