Home / 31,577.14-43,571.22-18,145.54

Finding the Fourth Proportional to 31,577.14, 43,571.22 and 18,145.54

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Solution

The fourth proportional to 31,577.14, 43,571.22 and 18,145.54 is: 25,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,577.14 : 43,571.22 = 18,145.54 : x
  2. Step 2: Convert to fraction form
    31,577.14/43,571.22 = 18,145.54/x
  3. Step 3: Cross multiply
    31,577.14x = 43,571.22 × 18,145.54
  4. Step 4: Simplify right side
    31,577.14x = 790,623,315.36
  5. Step 5: Solve for x
    x = 790,623,315.36/31,577.14
  6. Step 6: Final answer
    x = 25,037.84

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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.