Home / 31,786.59-43,865.43-17,639.40

Finding the Fourth Proportional to 31,786.59, 43,865.43 and 17,639.40

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Solution

The fourth proportional to 31,786.59, 43,865.43 and 17,639.40 is: 24,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.59 : 43,865.43 = 17,639.40 : x
  2. Step 2: Convert to fraction form
    31,786.59/43,865.43 = 17,639.40/x
  3. Step 3: Cross multiply
    31,786.59x = 43,865.43 × 17,639.40
  4. Step 4: Simplify right side
    31,786.59x = 773,759,865.94
  5. Step 5: Solve for x
    x = 773,759,865.94/31,786.59
  6. Step 6: Final answer
    x = 24,342.34

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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.