Home / 22,520.20-33,780.30-15,521.80

Finding the Fourth Proportional to 22,520.20, 33,780.30 and 15,521.80

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Solution

The fourth proportional to 22,520.20, 33,780.30 and 15,521.80 is: 23,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.20 : 33,780.30 = 15,521.80 : x
  2. Step 2: Convert to fraction form
    22,520.20/33,780.30 = 15,521.80/x
  3. Step 3: Cross multiply
    22,520.20x = 33,780.30 × 15,521.80
  4. Step 4: Simplify right side
    22,520.20x = 524,331,060.54
  5. Step 5: Solve for x
    x = 524,331,060.54/22,520.20
  6. Step 6: Final answer
    x = 23,282.70

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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.