Home / 23,121.80-34,682.70-8,331.20

Finding the Fourth Proportional to 23,121.80, 34,682.70 and 8,331.20

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Solution

The fourth proportional to 23,121.80, 34,682.70 and 8,331.20 is: 12,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.80 : 34,682.70 = 8,331.20 : x
  2. Step 2: Convert to fraction form
    23,121.80/34,682.70 = 8,331.20/x
  3. Step 3: Cross multiply
    23,121.80x = 34,682.70 × 8,331.20
  4. Step 4: Simplify right side
    23,121.80x = 288,948,510.24
  5. Step 5: Solve for x
    x = 288,948,510.24/23,121.80
  6. Step 6: Final answer
    x = 12,496.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.