Home / 22,712.40-34,058.20-12,180.80

Finding the Fourth Proportional to 22,712.40, 34,058.20 and 12,180.80

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Solution

The fourth proportional to 22,712.40, 34,058.20 and 12,180.80 is: 18,265.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.40 : 34,058.20 = 12,180.80 : x
  2. Step 2: Convert to fraction form
    22,712.40/34,058.20 = 12,180.80/x
  3. Step 3: Cross multiply
    22,712.40x = 34,058.20 × 12,180.80
  4. Step 4: Simplify right side
    22,712.40x = 414,856,122.56
  5. Step 5: Solve for x
    x = 414,856,122.56/22,712.40
  6. Step 6: Final answer
    x = 18,265.62

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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.