Home / 33,872.79-46,749.78-20,445.96

Finding the Fourth Proportional to 33,872.79, 46,749.78 and 20,445.96

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Solution

The fourth proportional to 33,872.79, 46,749.78 and 20,445.96 is: 28,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,872.79 : 46,749.78 = 20,445.96 : x
  2. Step 2: Convert to fraction form
    33,872.79/46,749.78 = 20,445.96/x
  3. Step 3: Cross multiply
    33,872.79x = 46,749.78 × 20,445.96
  4. Step 4: Simplify right side
    33,872.79x = 955,844,131.89
  5. Step 5: Solve for x
    x = 955,844,131.89/33,872.79
  6. Step 6: Final answer
    x = 28,218.64

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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.