Home / 33,624.96-46,400.64-18,720

Finding the Fourth Proportional to 33,624.96, 46,400.64 and 18,720

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Solution

The fourth proportional to 33,624.96, 46,400.64 and 18,720 is: 25,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,624.96 : 46,400.64 = 18,720 : x
  2. Step 2: Convert to fraction form
    33,624.96/46,400.64 = 18,720/x
  3. Step 3: Cross multiply
    33,624.96x = 46,400.64 × 18,720
  4. Step 4: Simplify right side
    33,624.96x = 868,619,980.80
  5. Step 5: Solve for x
    x = 868,619,980.80/33,624.96
  6. Step 6: Final answer
    x = 25,832.60

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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.