Home / 38,580.01-53,238.26-21,580.97

Finding the Fourth Proportional to 38,580.01, 53,238.26 and 21,580.97

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Solution

The fourth proportional to 38,580.01, 53,238.26 and 21,580.97 is: 29,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.01 : 53,238.26 = 21,580.97 : x
  2. Step 2: Convert to fraction form
    38,580.01/53,238.26 = 21,580.97/x
  3. Step 3: Cross multiply
    38,580.01x = 53,238.26 × 21,580.97
  4. Step 4: Simplify right side
    38,580.01x = 1,148,933,528.87
  5. Step 5: Solve for x
    x = 1,148,933,528.87/38,580.01
  6. Step 6: Final answer
    x = 29,780.54

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Double scale
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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.