Home / 30,994.54-42,772.21-16,847.34

Finding the Fourth Proportional to 30,994.54, 42,772.21 and 16,847.34

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Solution

The fourth proportional to 30,994.54, 42,772.21 and 16,847.34 is: 23,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,994.54 : 42,772.21 = 16,847.34 : x
  2. Step 2: Convert to fraction form
    30,994.54/42,772.21 = 16,847.34/x
  3. Step 3: Cross multiply
    30,994.54x = 42,772.21 × 16,847.34
  4. Step 4: Simplify right side
    30,994.54x = 720,597,964.42
  5. Step 5: Solve for x
    x = 720,597,964.42/30,994.54
  6. Step 6: Final answer
    x = 23,249.19

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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.