Home / 33,562.32-46,333.80-20,991.12

Finding the Fourth Proportional to 33,562.32, 46,333.80 and 20,991.12

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Solution

The fourth proportional to 33,562.32, 46,333.80 and 20,991.12 is: 28,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,562.32 : 46,333.80 = 20,991.12 : x
  2. Step 2: Convert to fraction form
    33,562.32/46,333.80 = 20,991.12/x
  3. Step 3: Cross multiply
    33,562.32x = 46,333.80 × 20,991.12
  4. Step 4: Simplify right side
    33,562.32x = 972,598,355.86
  5. Step 5: Solve for x
    x = 972,598,355.86/33,562.32
  6. Step 6: Final answer
    x = 28,978.88

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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.