Home / 30,660.50-42,311.13-17,234.03

Finding the Fourth Proportional to 30,660.50, 42,311.13 and 17,234.03

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Solution

The fourth proportional to 30,660.50, 42,311.13 and 17,234.03 is: 23,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.50 : 42,311.13 = 17,234.03 : x
  2. Step 2: Convert to fraction form
    30,660.50/42,311.13 = 17,234.03/x
  3. Step 3: Cross multiply
    30,660.50x = 42,311.13 × 17,234.03
  4. Step 4: Simplify right side
    30,660.50x = 729,191,283.75
  5. Step 5: Solve for x
    x = 729,191,283.75/30,660.50
  6. Step 6: Final answer
    x = 23,782.76

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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.