Home / 38,986.66-53,801.54-21,081.62

Finding the Fourth Proportional to 38,986.66, 53,801.54 and 21,081.62

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Solution

The fourth proportional to 38,986.66, 53,801.54 and 21,081.62 is: 29,092.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986.66 : 53,801.54 = 21,081.62 : x
  2. Step 2: Convert to fraction form
    38,986.66/53,801.54 = 21,081.62/x
  3. Step 3: Cross multiply
    38,986.66x = 53,801.54 × 21,081.62
  4. Step 4: Simplify right side
    38,986.66x = 1,134,223,621.69
  5. Step 5: Solve for x
    x = 1,134,223,621.69/38,986.66
  6. Step 6: Final answer
    x = 29,092.61

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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.