Home / 22,331.89-30,818.49-12,772.65

Finding the Fourth Proportional to 22,331.89, 30,818.49 and 12,772.65

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Solution

The fourth proportional to 22,331.89, 30,818.49 and 12,772.65 is: 17,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,331.89 : 30,818.49 = 12,772.65 : x
  2. Step 2: Convert to fraction form
    22,331.89/30,818.49 = 12,772.65/x
  3. Step 3: Cross multiply
    22,331.89x = 30,818.49 × 12,772.65
  4. Step 4: Simplify right side
    22,331.89x = 393,633,925.82
  5. Step 5: Solve for x
    x = 393,633,925.82/22,331.89
  6. Step 6: Final answer
    x = 17,626.54

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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.