Home / 31,786.58-43,865.34-17,639.39

Finding the Fourth Proportional to 31,786.58, 43,865.34 and 17,639.39

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Solution

The fourth proportional to 31,786.58, 43,865.34 and 17,639.39 is: 24,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.58 : 43,865.34 = 17,639.39 : x
  2. Step 2: Convert to fraction form
    31,786.58/43,865.34 = 17,639.39/x
  3. Step 3: Cross multiply
    31,786.58x = 43,865.34 × 17,639.39
  4. Step 4: Simplify right side
    31,786.58x = 773,757,839.74
  5. Step 5: Solve for x
    x = 773,757,839.74/31,786.58
  6. Step 6: Final answer
    x = 24,342.28

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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.