Home / 30,936.02-42,691.84-16,788.87

Finding the Fourth Proportional to 30,936.02, 42,691.84 and 16,788.87

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Solution

The fourth proportional to 30,936.02, 42,691.84 and 16,788.87 is: 23,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.02 : 42,691.84 = 16,788.87 : x
  2. Step 2: Convert to fraction form
    30,936.02/42,691.84 = 16,788.87/x
  3. Step 3: Cross multiply
    30,936.02x = 42,691.84 × 16,788.87
  4. Step 4: Simplify right side
    30,936.02x = 716,747,709.85
  5. Step 5: Solve for x
    x = 716,747,709.85/30,936.02
  6. Step 6: Final answer
    x = 23,168.71

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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.