Home / 30,932.82-42,687.57-16,785.78

Finding the Fourth Proportional to 30,932.82, 42,687.57 and 16,785.78

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Solution

The fourth proportional to 30,932.82, 42,687.57 and 16,785.78 is: 23,164.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.82 : 42,687.57 = 16,785.78 : x
  2. Step 2: Convert to fraction form
    30,932.82/42,687.57 = 16,785.78/x
  3. Step 3: Cross multiply
    30,932.82x = 42,687.57 × 16,785.78
  4. Step 4: Simplify right side
    30,932.82x = 716,544,158.75
  5. Step 5: Solve for x
    x = 716,544,158.75/30,932.82
  6. Step 6: Final answer
    x = 23,164.53

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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.