Home / 31,720.10-43,771.84-17,571.92

Finding the Fourth Proportional to 31,720.10, 43,771.84 and 17,571.92

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Solution

The fourth proportional to 31,720.10, 43,771.84 and 17,571.92 is: 24,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.10 : 43,771.84 = 17,571.92 : x
  2. Step 2: Convert to fraction form
    31,720.10/43,771.84 = 17,571.92/x
  3. Step 3: Cross multiply
    31,720.10x = 43,771.84 × 17,571.92
  4. Step 4: Simplify right side
    31,720.10x = 769,155,007.94
  5. Step 5: Solve for x
    x = 769,155,007.94/31,720.10
  6. Step 6: Final answer
    x = 24,248.19

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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.