Home / 30,932.24-42,687.26-16,785.05

Finding the Fourth Proportional to 30,932.24, 42,687.26 and 16,785.05

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Solution

The fourth proportional to 30,932.24, 42,687.26 and 16,785.05 is: 23,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.24 : 42,687.26 = 16,785.05 : x
  2. Step 2: Convert to fraction form
    30,932.24/42,687.26 = 16,785.05/x
  3. Step 3: Cross multiply
    30,932.24x = 42,687.26 × 16,785.05
  4. Step 4: Simplify right side
    30,932.24x = 716,507,496.10
  5. Step 5: Solve for x
    x = 716,507,496.10/30,932.24
  6. Step 6: Final answer
    x = 23,163.78

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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.