Home / 31,728.12-43,780.62-17,579.16

Finding the Fourth Proportional to 31,728.12, 43,780.62 and 17,579.16

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Solution

The fourth proportional to 31,728.12, 43,780.62 and 17,579.16 is: 24,256.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.12 : 43,780.62 = 17,579.16 : x
  2. Step 2: Convert to fraction form
    31,728.12/43,780.62 = 17,579.16/x
  3. Step 3: Cross multiply
    31,728.12x = 43,780.62 × 17,579.16
  4. Step 4: Simplify right side
    31,728.12x = 769,626,523.88
  5. Step 5: Solve for x
    x = 769,626,523.88/31,728.12
  6. Step 6: Final answer
    x = 24,256.92

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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.