Home / 38,618.44-53,286.39-21,622.95

Finding the Fourth Proportional to 38,618.44, 53,286.39 and 21,622.95

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Solution

The fourth proportional to 38,618.44, 53,286.39 and 21,622.95 is: 29,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618.44 : 53,286.39 = 21,622.95 : x
  2. Step 2: Convert to fraction form
    38,618.44/53,286.39 = 21,622.95/x
  3. Step 3: Cross multiply
    38,618.44x = 53,286.39 × 21,622.95
  4. Step 4: Simplify right side
    38,618.44x = 1,152,208,946.65
  5. Step 5: Solve for x
    x = 1,152,208,946.65/38,618.44
  6. Step 6: Final answer
    x = 29,835.72

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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.