Home / 30,994.92-42,771.24-16,847.66

Finding the Fourth Proportional to 30,994.92, 42,771.24 and 16,847.66

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Solution

The fourth proportional to 30,994.92, 42,771.24 and 16,847.66 is: 23,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,994.92 : 42,771.24 = 16,847.66 : x
  2. Step 2: Convert to fraction form
    30,994.92/42,771.24 = 16,847.66/x
  3. Step 3: Cross multiply
    30,994.92x = 42,771.24 × 16,847.66
  4. Step 4: Simplify right side
    30,994.92x = 720,595,309.30
  5. Step 5: Solve for x
    x = 720,595,309.30/30,994.92
  6. Step 6: Final answer
    x = 23,248.82

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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.