Home / 31,872.64-43,987.52-17,728.96

Finding the Fourth Proportional to 31,872.64, 43,987.52 and 17,728.96

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Solution

The fourth proportional to 31,872.64, 43,987.52 and 17,728.96 is: 24,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,872.64 : 43,987.52 = 17,728.96 : x
  2. Step 2: Convert to fraction form
    31,872.64/43,987.52 = 17,728.96/x
  3. Step 3: Cross multiply
    31,872.64x = 43,987.52 × 17,728.96
  4. Step 4: Simplify right side
    31,872.64x = 779,852,982.58
  5. Step 5: Solve for x
    x = 779,852,982.58/31,872.64
  6. Step 6: Final answer
    x = 24,467.79

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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.