Home / 31,533.09-43,515.39-17,385.63

Finding the Fourth Proportional to 31,533.09, 43,515.39 and 17,385.63

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Solution

The fourth proportional to 31,533.09, 43,515.39 and 17,385.63 is: 23,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,533.09 : 43,515.39 = 17,385.63 : x
  2. Step 2: Convert to fraction form
    31,533.09/43,515.39 = 17,385.63/x
  3. Step 3: Cross multiply
    31,533.09x = 43,515.39 × 17,385.63
  4. Step 4: Simplify right side
    31,533.09x = 756,542,469.85
  5. Step 5: Solve for x
    x = 756,542,469.85/31,533.09
  6. Step 6: Final answer
    x = 23,992.02

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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.