Home / 20,287.24-30,434.70-6,433.48

Finding the Fourth Proportional to 20,287.24, 30,434.70 and 6,433.48

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Solution

The fourth proportional to 20,287.24, 30,434.70 and 6,433.48 is: 9,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.24 : 30,434.70 = 6,433.48 : x
  2. Step 2: Convert to fraction form
    20,287.24/30,434.70 = 6,433.48/x
  3. Step 3: Cross multiply
    20,287.24x = 30,434.70 × 6,433.48
  4. Step 4: Simplify right side
    20,287.24x = 195,801,033.76
  5. Step 5: Solve for x
    x = 195,801,033.76/20,287.24
  6. Step 6: Final answer
    x = 9,651.44

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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.