Home / 20,000.43-30,007.92-10,641.27

Finding the Fourth Proportional to 20,000.43, 30,007.92 and 10,641.27

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Solution

The fourth proportional to 20,000.43, 30,007.92 and 10,641.27 is: 15,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.43 : 30,007.92 = 10,641.27 : x
  2. Step 2: Convert to fraction form
    20,000.43/30,007.92 = 10,641.27/x
  3. Step 3: Cross multiply
    20,000.43x = 30,007.92 × 10,641.27
  4. Step 4: Simplify right side
    20,000.43x = 319,322,378.86
  5. Step 5: Solve for x
    x = 319,322,378.86/20,000.43
  6. Step 6: Final answer
    x = 15,965.78

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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.