Home / 31,669.43-43,697.30-18,237.11

Finding the Fourth Proportional to 31,669.43, 43,697.30 and 18,237.11

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Solution

The fourth proportional to 31,669.43, 43,697.30 and 18,237.11 is: 25,163.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.43 : 43,697.30 = 18,237.11 : x
  2. Step 2: Convert to fraction form
    31,669.43/43,697.30 = 18,237.11/x
  3. Step 3: Cross multiply
    31,669.43x = 43,697.30 × 18,237.11
  4. Step 4: Simplify right side
    31,669.43x = 796,912,157.13
  5. Step 5: Solve for x
    x = 796,912,157.13/31,669.43
  6. Step 6: Final answer
    x = 25,163.46

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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.