Home / 33,678.43-46,474.33-20,931.29

Finding the Fourth Proportional to 33,678.43, 46,474.33 and 20,931.29

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Solution

The fourth proportional to 33,678.43, 46,474.33 and 20,931.29 is: 28,883.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,678.43 : 46,474.33 = 20,931.29 : x
  2. Step 2: Convert to fraction form
    33,678.43/46,474.33 = 20,931.29/x
  3. Step 3: Cross multiply
    33,678.43x = 46,474.33 × 20,931.29
  4. Step 4: Simplify right side
    33,678.43x = 972,767,672.97
  5. Step 5: Solve for x
    x = 972,767,672.97/33,678.43
  6. Step 6: Final answer
    x = 28,883.99

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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.