Home / 20,007.09-30,004.26-8,160.84

Finding the Fourth Proportional to 20,007.09, 30,004.26 and 8,160.84

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Solution

The fourth proportional to 20,007.09, 30,004.26 and 8,160.84 is: 12,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.09 : 30,004.26 = 8,160.84 : x
  2. Step 2: Convert to fraction form
    20,007.09/30,004.26 = 8,160.84/x
  3. Step 3: Cross multiply
    20,007.09x = 30,004.26 × 8,160.84
  4. Step 4: Simplify right side
    20,007.09x = 244,859,965.18
  5. Step 5: Solve for x
    x = 244,859,965.18/20,007.09
  6. Step 6: Final answer
    x = 12,238.66

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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.