Home / 31,760.28-43,849.26-20,435.04

Finding the Fourth Proportional to 31,760.28, 43,849.26 and 20,435.04

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Solution

The fourth proportional to 31,760.28, 43,849.26 and 20,435.04 is: 28,213.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,760.28 : 43,849.26 = 20,435.04 : x
  2. Step 2: Convert to fraction form
    31,760.28/43,849.26 = 20,435.04/x
  3. Step 3: Cross multiply
    31,760.28x = 43,849.26 × 20,435.04
  4. Step 4: Simplify right side
    31,760.28x = 896,061,382.07
  5. Step 5: Solve for x
    x = 896,061,382.07/31,760.28
  6. Step 6: Final answer
    x = 28,213.27

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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.