Home / 31,721.32-43,772.58-17,570.44

Finding the Fourth Proportional to 31,721.32, 43,772.58 and 17,570.44

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Solution

The fourth proportional to 31,721.32, 43,772.58 and 17,570.44 is: 24,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.32 : 43,772.58 = 17,570.44 : x
  2. Step 2: Convert to fraction form
    31,721.32/43,772.58 = 17,570.44/x
  3. Step 3: Cross multiply
    31,721.32x = 43,772.58 × 17,570.44
  4. Step 4: Simplify right side
    31,721.32x = 769,103,490.54
  5. Step 5: Solve for x
    x = 769,103,490.54/31,721.32
  6. Step 6: Final answer
    x = 24,245.63

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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.