Home / 22,080.75-30,472.79-12,521.54

Finding the Fourth Proportional to 22,080.75, 30,472.79 and 12,521.54

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Solution

The fourth proportional to 22,080.75, 30,472.79 and 12,521.54 is: 17,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,080.75 : 30,472.79 = 12,521.54 : x
  2. Step 2: Convert to fraction form
    22,080.75/30,472.79 = 12,521.54/x
  3. Step 3: Cross multiply
    22,080.75x = 30,472.79 × 12,521.54
  4. Step 4: Simplify right side
    22,080.75x = 381,566,043.92
  5. Step 5: Solve for x
    x = 381,566,043.92/22,080.75
  6. Step 6: Final answer
    x = 17,280.48

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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.