Home / 31,203.82-43,057.87-18,457.46

Finding the Fourth Proportional to 31,203.82, 43,057.87 and 18,457.46

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Solution

The fourth proportional to 31,203.82, 43,057.87 and 18,457.46 is: 25,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,203.82 : 43,057.87 = 18,457.46 : x
  2. Step 2: Convert to fraction form
    31,203.82/43,057.87 = 18,457.46/x
  3. Step 3: Cross multiply
    31,203.82x = 43,057.87 × 18,457.46
  4. Step 4: Simplify right side
    31,203.82x = 794,738,913.21
  5. Step 5: Solve for x
    x = 794,738,913.21/31,203.82
  6. Step 6: Final answer
    x = 25,469.28

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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.