Home / 33,812.86-46,665.66-20,390.98

Finding the Fourth Proportional to 33,812.86, 46,665.66 and 20,390.98

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Solution

The fourth proportional to 33,812.86, 46,665.66 and 20,390.98 is: 28,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,812.86 : 46,665.66 = 20,390.98 : x
  2. Step 2: Convert to fraction form
    33,812.86/46,665.66 = 20,390.98/x
  3. Step 3: Cross multiply
    33,812.86x = 46,665.66 × 20,390.98
  4. Step 4: Simplify right side
    33,812.86x = 951,558,539.75
  5. Step 5: Solve for x
    x = 951,558,539.75/33,812.86
  6. Step 6: Final answer
    x = 28,141.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.