Home / 38,823.66-53,570.09-21,825.65

Finding the Fourth Proportional to 38,823.66, 53,570.09 and 21,825.65

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Solution

The fourth proportional to 38,823.66, 53,570.09 and 21,825.65 is: 30,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,823.66 : 53,570.09 = 21,825.65 : x
  2. Step 2: Convert to fraction form
    38,823.66/53,570.09 = 21,825.65/x
  3. Step 3: Cross multiply
    38,823.66x = 53,570.09 × 21,825.65
  4. Step 4: Simplify right side
    38,823.66x = 1,169,202,223.30
  5. Step 5: Solve for x
    x = 1,169,202,223.30/38,823.66
  6. Step 6: Final answer
    x = 30,115.71

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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.