Home / 20,433.72-30,641.94-6,389.99

Finding the Fourth Proportional to 20,433.72, 30,641.94 and 6,389.99

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Solution

The fourth proportional to 20,433.72, 30,641.94 and 6,389.99 is: 9,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.72 : 30,641.94 = 6,389.99 : x
  2. Step 2: Convert to fraction form
    20,433.72/30,641.94 = 6,389.99/x
  3. Step 3: Cross multiply
    20,433.72x = 30,641.94 × 6,389.99
  4. Step 4: Simplify right side
    20,433.72x = 195,801,536.97
  5. Step 5: Solve for x
    x = 195,801,536.97/20,433.72
  6. Step 6: Final answer
    x = 9,582.28

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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.