Home / 30,940.45-42,697.85-16,793.30

Finding the Fourth Proportional to 30,940.45, 42,697.85 and 16,793.30

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Solution

The fourth proportional to 30,940.45, 42,697.85 and 16,793.30 is: 23,174.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.45 : 42,697.85 = 16,793.30 : x
  2. Step 2: Convert to fraction form
    30,940.45/42,697.85 = 16,793.30/x
  3. Step 3: Cross multiply
    30,940.45x = 42,697.85 × 16,793.30
  4. Step 4: Simplify right side
    30,940.45x = 717,037,827.18
  5. Step 5: Solve for x
    x = 717,037,827.18/30,940.45
  6. Step 6: Final answer
    x = 23,174.77

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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.