Home / 30,797.72-42,500.87-16,650.56

Finding the Fourth Proportional to 30,797.72, 42,500.87 and 16,650.56

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Solution

The fourth proportional to 30,797.72, 42,500.87 and 16,650.56 is: 22,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,797.72 : 42,500.87 = 16,650.56 : x
  2. Step 2: Convert to fraction form
    30,797.72/42,500.87 = 16,650.56/x
  3. Step 3: Cross multiply
    30,797.72x = 42,500.87 × 16,650.56
  4. Step 4: Simplify right side
    30,797.72x = 707,663,371.43
  5. Step 5: Solve for x
    x = 707,663,371.43/30,797.72
  6. Step 6: Final answer
    x = 22,977.79

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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.